15013312002 has 24 divisors (see below), whose sum is σ = 35031061884. Its totient is φ = 4619480544.

The previous prime is 15013312001. The next prime is 15013312007. The reversal of 15013312002 is 20021331051.

It can be written as a sum of positive squares in 2 ways, for example, as 14665452201 + 347859801 = 121101^2 + 18651^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (15013312001) 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, 32079493 + ... + 32079960.

Almost surely, 2^15013312002 is an apocalyptic number.

15013312002 is an abundant number, since it is smaller than the sum of its proper divisors (20017749882).

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

15013312002 is a wasteful number, since it uses less digits than its factorization.

15013312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64159474 (or 64159471 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 15013312002 its reverse (20021331051), we get a palindrome (35034643053).

The spelling of 15013312002 in words is "fifteen billion, thirteen million, three hundred twelve thousand, two".