13120031501 has 2 divisors, whose sum is σ = 13120031502. Its totient is φ = 13120031500.

The previous prime is 13120031467. The next prime is 13120031543. The reversal of 13120031501 is 10513002131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12645227401 + 474804100 = 112451^2 + 21790^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120031501 - 2¹⁰ = 13120030477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13120031501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120031101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560015750 + 6560015751.

It is an arithmetic number, because the mean of its divisors is an integer number (6560015751).

Almost surely, 2^13120031501 is an apocalyptic number.

It is an amenable number.

13120031501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120031501 is an equidigital number, since it uses as much as digits as its factorization.

13120031501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 13120031501 its reverse (10513002131), we get a palindrome (23633033632).

The spelling of 13120031501 in words is "thirteen billion, one hundred twenty million, thirty-one thousand, five hundred one".