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1311331213230 = 2351718114205733
BaseRepresentation
bin10011000101010001011…
…011100101111110101110
311122100202221000201121020
4103011101123211332232
5132441101242310410
62442230042515010
7163512003254433
oct23052133457656
94570687021536
101311331213230
11466150313425
1219218a205a66
139687282ab3c
144767c435b8a
152419dadba70
hex131516e5fae

1311331213230 has 64 divisors (see below), whose sum is σ = 3350734890048. Its totient is φ = 327300065280.

The previous prime is 1311331213211. The next prime is 1311331213267. The reversal of 1311331213230 is 323121331131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311331213230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7010557 + ... + 7195176.

It is an arithmetic number, because the mean of its divisors is an integer number (52355232657).

Almost surely, 21311331213230 is an apocalyptic number.

1311331213230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311331213230 is an abundant number, since it is smaller than the sum of its proper divisors (2039403676818).

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

1311331213230 is a wasteful number, since it uses less digits than its factorization.

1311331213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205941.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1311331213230 its reverse (323121331131), we get a palindrome (1634452544361).

The spelling of 1311331213230 in words is "one trillion, three hundred eleven billion, three hundred thirty-one million, two hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 181 255 362 510 543 905 1086 1810 2715 3077 5430 6154 9231 15385 18462 30770 46155 92310 14205733 28411466 42617199 71028665 85234398 142057330 213085995 241497461 426171990 482994922 724492383 1207487305 1448984766 2414974610 2571237673 3622461915 5142475346 7244923830 7713713019 12856188365 15427426038 25712376730 38568565095 43711040441 77137130190 87422080882 131133121323 218555202205 262266242646 437110404410 655665606615 1311331213230