13214662531 has 4 divisors (see below), whose sum is σ = 15102471472. Its totient is φ = 11326853592.

The previous prime is 13214662501. The next prime is 13214662553. The reversal of 13214662531 is 13526641231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13526641231 = 2269 ⋅5961499.

It is a cyclic number.

It is not a de Polignac number, because 13214662531 - 2¹³ = 13214654339 is a prime.

It is a super-2 number, since 2×13214662531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13214662501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943904460 + ... + 943904473.

It is an arithmetic number, because the mean of its divisors is an integer number (3775617868).

Almost surely, 2^13214662531 is an apocalyptic number.

13214662531 is a deficient number, since it is larger than the sum of its proper divisors (1887808941).

13214662531 is an equidigital number, since it uses as much as digits as its factorization.

13214662531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887808940.

The product of its digits is 25920, while the sum is 34.

The spelling of 13214662531 in words is "thirteen billion, two hundred fourteen million, six hundred sixty-two thousand, five hundred thirty-one".