13120231401 has 24 divisors (see below), whose sum is σ = 19665285120. Its totient is φ = 8420313600.

The previous prime is 13120231393. The next prime is 13120231403. The reversal of 13120231401 is 10413202131.

13120231401 is a `hidden beast` number, since 1 + 31 + 2 + 0 + 231 + 401 = 666.

It is not a de Polignac number, because 13120231401 - 2³ = 13120231393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13120231403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69816 + ... + 176393.

It is an arithmetic number, because the mean of its divisors is an integer number (819386880).

Almost surely, 2^13120231401 is an apocalyptic number.

It is an amenable number.

13120231401 is a deficient number, since it is larger than the sum of its proper divisors (6545053719).

13120231401 is a wasteful number, since it uses less digits than its factorization.

13120231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246437 (or 246434 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13120231401 its reverse (10413202131), we get a palindrome (23533433532).

The spelling of 13120231401 in words is "thirteen billion, one hundred twenty million, two hundred thirty-one thousand, four hundred one".