15223112131 has 8 divisors (see below), whose sum is σ = 15643019504. Its totient is φ = 14803650720.

The previous prime is 15223112081. The next prime is 15223112137. The reversal of 15223112131 is 13121132251.

15223112131 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 15223112131 - 2¹¹ = 15223110083 is a prime.

It is a super-2 number, since 2×15223112131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15223112137) 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, 41685 + ... + 179398.

It is an arithmetic number, because the mean of its divisors is an integer number (1955377438).

Almost surely, 2^15223112131 is an apocalyptic number.

15223112131 is a deficient number, since it is larger than the sum of its proper divisors (419907373).

15223112131 is a wasteful number, since it uses less digits than its factorization.

15223112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222981.

The product of its digits is 360, while the sum is 22.

Adding to 15223112131 its reverse (13121132251), we get a palindrome (28344244382).

The spelling of 15223112131 in words is "fifteen billion, two hundred twenty-three million, one hundred twelve thousand, one hundred thirty-one".