13120130402320 has 40 divisors (see below), whose sum is σ = 30534535586520. Its totient is φ = 5242850887680.

The previous prime is 13120130402317. The next prime is 13120130402329. The reversal of 13120130402320 is 2320403102131.

It can be written as a sum of positive squares in 4 ways, for example, as 3422337201936 + 9697793200384 = 1849956^2 + 3114128^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×13120130402320² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13120130402291 and 13120130402300.

It is not an unprimeable number, because it can be changed into a prime (13120130402329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81188671 + ... + 81350110.

It is an arithmetic number, because the mean of its divisors is an integer number (763363389663).

Almost surely, 2^{13120130402320} is an apocalyptic number.

13120130402320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120130402320 is an abundant number, since it is smaller than the sum of its proper divisors (17414405184200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13120130402320 is a wasteful number, since it uses less digits than its factorization.

13120130402320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162539803 (or 162539797 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13120130402320 its reverse (2320403102131), we get a palindrome (15440533504451).

The spelling of 13120130402320 in words is "thirteen trillion, one hundred twenty billion, one hundred thirty million, four hundred two thousand, three hundred twenty".