13125515404402 has 8 divisors (see below), whose sum is σ = 19688973915996. Its totient is φ = 6562524099072.

The previous prime is 13125515404381. The next prime is 13125515404409. The reversal of 13125515404402 is 20440451552131.

13125515404402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9446519043361 + 3678996361041 = 3073519^2 + 1918071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13125515404409) 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, 116731323 + ... + 116843710.

Almost surely, 2^{13125515404402} is an apocalyptic number.

13125515404402 is a deficient number, since it is larger than the sum of its proper divisors (6563458511594).

13125515404402 is a wasteful number, since it uses less digits than its factorization.

13125515404402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233603132.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 13125515404402 its reverse (20440451552131), we get a palindrome (33565966956533).

The spelling of 13125515404402 in words is "thirteen trillion, one hundred twenty-five billion, five hundred fifteen million, four hundred four thousand, four hundred two".