13131304204202 has 4 divisors (see below), whose sum is σ = 19696956306306. Its totient is φ = 6565652102100.

The previous prime is 13131304204201. The next prime is 13131304204211. The reversal of 13131304204202 is 20240240313131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9239052655561 + 3892251548641 = 3039581^2 + 1972879^2 .

It is not an unprimeable number, because it can be changed into a prime (13131304204201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282826051049 + ... + 3282826051052.

Almost surely, 2^{13131304204202} is an apocalyptic number.

13131304204202 is a deficient number, since it is larger than the sum of its proper divisors (6565652102104).

13131304204202 is an equidigital number, since it uses as much as digits as its factorization.

13131304204202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565652102103.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13131304204202 its reverse (20240240313131), we get a palindrome (33371544517333).

The spelling of 13131304204202 in words is "thirteen trillion, one hundred thirty-one billion, three hundred four million, two hundred four thousand, two hundred two".