13120231211 has 8 divisors (see below), whose sum is σ = 13150737600. Its totient is φ = 13089761280.

The previous prime is 13120231171. The next prime is 13120231261. The reversal of 13120231211 is 11213202131.

13120231211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13120231211 - 2¹⁰ = 13120230187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13120231211.

It is not an unprimeable number, because it can be changed into a prime (13120231261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790781 + ... + 807201.

It is an arithmetic number, because the mean of its divisors is an integer number (1643842200).

Almost surely, 2^13120231211 is an apocalyptic number.

13120231211 is a deficient number, since it is larger than the sum of its proper divisors (30506389).

13120231211 is a wasteful number, since it uses less digits than its factorization.

13120231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18229.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13120231211 its reverse (11213202131), we get a palindrome (24333433342).

The spelling of 13120231211 in words is "thirteen billion, one hundred twenty million, two hundred thirty-one thousand, two hundred eleven".