15120412111 has 12 divisors (see below), whose sum is σ = 17636998368. Its totient is φ = 12925023552.

The previous prime is 15120412091. The next prime is 15120412147. The reversal of 15120412111 is 11121402151.

It is not a de Polignac number, because 15120412111 - 2⁹ = 15120411599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15120412171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402426 + ... + 438391.

It is an arithmetic number, because the mean of its divisors is an integer number (1469749864).

Almost surely, 2^15120412111 is an apocalyptic number.

15120412111 is a deficient number, since it is larger than the sum of its proper divisors (2516586257).

15120412111 is an equidigital number, since it uses as much as digits as its factorization.

15120412111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841198 (or 841191 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 15120412111 its reverse (11121402151), we get a palindrome (26241814262).

The spelling of 15120412111 in words is "fifteen billion, one hundred twenty million, four hundred twelve thousand, one hundred eleven".