13120210231 has 4 divisors (see below), whose sum is σ = 13124057832. Its totient is φ = 13116362632.

The previous prime is 13120210219. The next prime is 13120210237. The reversal of 13120210231 is 13201202131.

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

It is a cyclic number.

It is not a de Polignac number, because 13120210231 - 2⁵ = 13120210199 is a prime.

It is a super-2 number, since 2×13120210231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120210237) 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, 1918681 + ... + 1925506.

It is an arithmetic number, because the mean of its divisors is an integer number (3281014458).

Almost surely, 2^13120210231 is an apocalyptic number.

13120210231 is a deficient number, since it is larger than the sum of its proper divisors (3847601).

13120210231 is an equidigital number, since it uses as much as digits as its factorization.

13120210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847600.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13120210231 its reverse (13201202131), we get a palindrome (26321412362).

The spelling of 13120210231 in words is "thirteen billion, one hundred twenty million, two hundred ten thousand, two hundred thirty-one".