13351540231 has 12 divisors (see below), whose sum is σ = 13859414712. Its totient is φ = 12861683744.

The previous prime is 13351540211. The next prime is 13351540253. The reversal of 13351540231 is 13204515331.

It is a happy number.

It is not a de Polignac number, because 13351540231 - 2²⁹ = 12814669319 is a prime.

It is a super-2 number, since 2×13351540231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13351540231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13351540211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354645 + ... + 390481.

It is an arithmetic number, because the mean of its divisors is an integer number (1154951226).

Almost surely, 2^13351540231 is an apocalyptic number.

13351540231 is a deficient number, since it is larger than the sum of its proper divisors (507874481).

13351540231 is an equidigital number, since it uses as much as digits as its factorization.

13351540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36338 (or 36309 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 13351540231 in words is "thirteen billion, three hundred fifty-one million, five hundred forty thousand, two hundred thirty-one".