13103161281 has 48 divisors (see below), whose sum is σ = 23070438144. Its totient is φ = 6995561472.

The previous prime is 13103161237. The next prime is 13103161319. The reversal of 13103161281 is 18216130131.

13103161281 is a `hidden beast` number, since 1 + 3 + 10 + 31 + 612 + 8 + 1 = 666.

It is not a de Polignac number, because 13103161281 - 2⁶ = 13103161217 is a prime.

It is a super-2 number, since 2×13103161281² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13103161231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102076 + ... + 191378.

It is an arithmetic number, because the mean of its divisors is an integer number (480634128).

Almost surely, 2^13103161281 is an apocalyptic number.

It is an amenable number.

13103161281 is a deficient number, since it is larger than the sum of its proper divisors (9967276863).

13103161281 is a wasteful number, since it uses less digits than its factorization.

13103161281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89470 (or 89467 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 13103161281 in words is "thirteen billion, one hundred three million, one hundred sixty-one thousand, two hundred eighty-one".