13120032104 has 8 divisors (see below), whose sum is σ = 24600060210. Its totient is φ = 6560016048.

The previous prime is 13120032097. The next prime is 13120032109. The reversal of 13120032104 is 40123002131.

It can be written as a sum of positive squares in only one way, i.e., 12543552004 + 576480100 = 111998^2 + 24010^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13120032109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820001999 + ... + 820002014.

Almost surely, 2^13120032104 is an apocalyptic number.

It is an amenable number.

13120032104 is a deficient number, since it is larger than the sum of its proper divisors (11480028106).

13120032104 is a wasteful number, since it uses less digits than its factorization.

13120032104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640004019 (or 1640004015 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13120032104 its reverse (40123002131), we get a palindrome (53243034235).

The spelling of 13120032104 in words is "thirteen billion, one hundred twenty million, thirty-two thousand, one hundred four".