13500010531 has 6 divisors (see below), whose sum is σ = 15704093940. Its totient is φ = 11571437556.

The previous prime is 13500010529. The next prime is 13500010547. The reversal of 13500010531 is 13501000531.

It is not a de Polignac number, because 13500010531 - 2¹ = 13500010529 is a prime.

It is a super-2 number, since 2×13500010531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13500010499 and 13500010508.

It is not an unprimeable number, because it can be changed into a prime (13500010031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137755161 + ... + 137755258.

It is an arithmetic number, because the mean of its divisors is an integer number (2617348990).

Almost surely, 2^13500010531 is an apocalyptic number.

13500010531 is a deficient number, since it is larger than the sum of its proper divisors (2204083409).

13500010531 is an equidigital number, since it uses as much as digits as its factorization.

13500010531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275510433 (or 275510426 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 19.

The spelling of 13500010531 in words is "thirteen billion, five hundred million, ten thousand, five hundred thirty-one".