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1311101010312 = 2331992027135431
BaseRepresentation
bin10011000101000011101…
…101011100000110001000
311122100011212212012120020
4103011003231130012020
5132440113324312222
62442151140500440
7163503206465052
oct23050355340610
94570155765506
101311101010312
11466042381585
121921250aa720
1396836c2a3b2
1447659a308d2
15241887b865c
hex13143b5c188

1311101010312 has 64 divisors (see below), whose sum is σ = 3295873152000. Its totient is φ = 434619789120.

The previous prime is 1311101010311. The next prime is 1311101010337. The reversal of 1311101010312 is 2130101011131.

It is a super-2 number, since 2×13111010103122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311101010291 and 1311101010300.

It is not an unprimeable number, because it can be changed into a prime (1311101010311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9613237 + ... + 9748667.

It is an arithmetic number, because the mean of its divisors is an integer number (51498018000).

Almost surely, 21311101010312 is an apocalyptic number.

1311101010312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311101010312 is an abundant number, since it is smaller than the sum of its proper divisors (1984772141688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311101010312 is a wasteful number, since it uses less digits than its factorization.

1311101010312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137666 (or 137662 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1311101010312 its reverse (2130101011131), we get a palindrome (3441202021443).

The spelling of 1311101010312 in words is "one trillion, three hundred eleven billion, one hundred one million, ten thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 199 398 597 796 1194 1592 2027 2388 4054 4776 6081 8108 12162 16216 24324 48648 135431 270862 403373 406293 541724 806746 812586 1083448 1210119 1613492 1625172 2420238 3226984 3250344 4840476 9680952 26950769 53901538 80852307 107803076 161704614 215606152 274518637 323409228 549037274 646818456 823555911 1098074548 1647111822 2196149096 3294223644 6588447288 54629208763 109258417526 163887626289 218516835052 327775252578 437033670104 655550505156 1311101010312