13120432313 has 2 divisors, whose sum is σ = 13120432314. Its totient is φ = 13120432312.

The previous prime is 13120432309. The next prime is 13120432337. The reversal of 13120432313 is 31323402131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12895192249 + 225240064 = 113557^2 + 15008^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120432313 - 2² = 13120432309 is a prime.

It is not a weakly prime, because it can be changed into another prime (13120432613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560216156 + 6560216157.

It is an arithmetic number, because the mean of its divisors is an integer number (6560216157).

Almost surely, 2^13120432313 is an apocalyptic number.

It is an amenable number.

13120432313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120432313 is an equidigital number, since it uses as much as digits as its factorization.

13120432313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 13120432313 its reverse (31323402131), we get a palindrome (44443834444).

The spelling of 13120432313 in words is "thirteen billion, one hundred twenty million, four hundred thirty-two thousand, three hundred thirteen".