15020112231 has 16 divisors (see below), whose sum is σ = 22254912000. Its totient is φ = 10012105944.

The previous prime is 15020112209. The next prime is 15020112251. The reversal of 15020112231 is 13221102051.

It is not a de Polignac number, because 15020112231 - 2⁷ = 15020112103 is a prime.

It is a super-2 number, since 2×15020112231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15020112251) 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, 204370 + ... + 267968.

It is an arithmetic number, because the mean of its divisors is an integer number (1390932000).

Almost surely, 2^15020112231 is an apocalyptic number.

15020112231 is a deficient number, since it is larger than the sum of its proper divisors (7234799769).

15020112231 is an equidigital number, since it uses as much as digits as its factorization.

15020112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72355 (or 72349 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 15020112231 its reverse (13221102051), we get a palindrome (28241214282).

The spelling of 15020112231 in words is "fifteen billion, twenty million, one hundred twelve thousand, two hundred thirty-one".