13422031138724 has 54 divisors (see below), whose sum is σ = 26341642626390. Its totient is φ = 5981170121472.

The previous prime is 13422031138723. The next prime is 13422031138829. The reversal of 13422031138724 is 42783113022431.

It can be written as a sum of positive squares in 9 ways, for example, as 8924068833124 + 4497962305600 = 2987318^2 + 2120840^2 .

It is a super-2 number, since 2×13422031138724² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13422031138723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11235929 + ... + 12372960.

It is an arithmetic number, because the mean of its divisors is an integer number (487808196785).

Almost surely, 2^{13422031138724} is an apocalyptic number.

It is an amenable number.

13422031138724 is a deficient number, since it is larger than the sum of its proper divisors (12919611487666).

13422031138724 is a wasteful number, since it uses less digits than its factorization.

13422031138724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23608977 (or 23608933 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 13422031138724 in words is "thirteen trillion, four hundred twenty-two billion, thirty-one million, one hundred thirty-eight thousand, seven hundred twenty-four".