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3111112210031 = 721097123147017
BaseRepresentation
bin101101010001011100101…
…111001111011001101111
3102000102022202111101011022
4231101130233033121233
5401433024211210111
610341120351444355
7440525155313300
oct55213457173157
912012282441138
103111112210031
11a9a462810731
12422b552266bb
131974b8594247
14aa815ab67a7
1555dd92d52db
hex2d45cbcf66f

3111112210031 has 24 divisors (see below), whose sum is σ = 3625367651136. Its totient is φ = 2662015829760.

The previous prime is 3111112209983. The next prime is 3111112210057. The reversal of 3111112210031 is 1300122111113.

It is not a de Polignac number, because 3111112210031 - 222 = 3111108015727 is a prime.

It is a super-2 number, since 2×31111122100312 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3111112209991 and 3111112210009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111112210091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66146435 + ... + 66193451.

It is an arithmetic number, because the mean of its divisors is an integer number (151056985464).

Almost surely, 23111112210031 is an apocalyptic number.

3111112210031 is a deficient number, since it is larger than the sum of its proper divisors (514255441105).

3111112210031 is a wasteful number, since it uses less digits than its factorization.

3111112210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49359 (or 49352 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 3111112210031 its reverse (1300122111113), we get a palindrome (4411234321144).

The spelling of 3111112210031 in words is "three trillion, one hundred eleven billion, one hundred twelve million, two hundred ten thousand, thirty-one".

Divisors: 1 7 49 1097 1231 7679 8617 47017 53753 60319 329119 1350407 2303833 9452849 51577649 57877927 66169943 361043543 405145489 2527304801 2836018423 63492085919 444444601433 3111112210031