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1310311111112 = 23712306885759
BaseRepresentation
bin10011000100010100101…
…000001101100111001000
311122021010211112011120022
4103010110220031213020
5132432004121023422
62441540522320012
7163444505450663
oct23042450154710
94567124464508
101310311111112
1146577750a623
12191b44659008
139673c3a2c13
14475c2b746da
152413e289342
hex13114a0d9c8

1310311111112 has 16 divisors (see below), whose sum is σ = 2491436620800. Its totient is φ = 645928012240.

The previous prime is 1310311111097. The next prime is 1310311111133. The reversal of 1310311111112 is 2111111130131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153442312 + ... + 1153443447.

It is an arithmetic number, because the mean of its divisors is an integer number (155714788800).

Almost surely, 21310311111112 is an apocalyptic number.

It is an amenable number.

1310311111112 is a deficient number, since it is larger than the sum of its proper divisors (1181125509688).

1310311111112 is a wasteful number, since it uses less digits than its factorization.

1310311111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306885836 (or 2306885832 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 1310311111112 its reverse (2111111130131), we get a palindrome (3421422241243).

The spelling of 1310311111112 in words is "one trillion, three hundred ten billion, three hundred eleven million, one hundred eleven thousand, one hundred twelve".

Divisors: 1 2 4 8 71 142 284 568 2306885759 4613771518 9227543036 18455086072 163788888889 327577777778 655155555556 1310311111112