13120012311 has 16 divisors (see below), whose sum is σ = 20076057600. Its totient is φ = 7465778208.

The previous prime is 13120012289. The next prime is 13120012313. The reversal of 13120012311 is 11321002131.

It is a happy number.

It is not a de Polignac number, because 13120012311 - 2⁶ = 13120012247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120012313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302016 + ... + 1312053.

It is an arithmetic number, because the mean of its divisors is an integer number (1254753600).

Almost surely, 2^13120012311 is an apocalyptic number.

13120012311 is a deficient number, since it is larger than the sum of its proper divisors (6956045289).

13120012311 is a wasteful number, since it uses less digits than its factorization.

13120012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614318.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13120012311 its reverse (11321002131), we get a palindrome (24441014442).

The spelling of 13120012311 in words is "thirteen billion, one hundred twenty million, twelve thousand, three hundred eleven".