13015451031 has 16 divisors (see below), whose sum is σ = 19088030208. Its totient is φ = 7888149720.

The previous prime is 13015451017. The next prime is 13015451063.

13015451031 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13015451031 - 2²⁷ = 12881233303 is a prime.

It is a super-2 number, since 2×13015451031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13015450992 and 13015451010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13015450031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1625791 + ... + 1633776.

It is an arithmetic number, because the mean of its divisors is an integer number (1193001888).

Almost surely, 2^13015451031 is an apocalyptic number.

13015451031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13015451031 is a deficient number, since it is larger than the sum of its proper divisors (6072579177).

13015451031 is an equidigital number, since it uses as much as digits as its factorization.

13015451031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259603 (or 3259581 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 13015451031 in words is "thirteen billion, fifteen million, four hundred fifty-one thousand, thirty-one".