15293023212 has 54 divisors (see below), whose sum is σ = 36986670084. Its totient is φ = 4917894240.

The previous prime is 15293023189. The next prime is 15293023223. The reversal of 15293023212 is 21232039251.

15293023212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15293023212.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 12422637 + ... + 12423867.

Almost surely, 2^15293023212 is an apocalyptic number.

15293023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15293023212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18493335042).

15293023212 is an abundant number, since it is smaller than the sum of its proper divisors (21693646872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15293023212 is an equidigital number, since it uses as much as digits as its factorization.

15293023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 15293023212 in words is "fifteen billion, two hundred ninety-three million, twenty-three thousand, two hundred twelve".