15323331012 has 96 divisors (see below), whose sum is σ = 39925616640. Its totient is φ = 4535066880.

The previous prime is 15323330989. The next prime is 15323331019. The reversal of 15323331012 is 21013332351.

It is not an unprimeable number, because it can be changed into a prime (15323331019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 984789 + ... + 1000227.

It is an arithmetic number, because the mean of its divisors is an integer number (415891840).

Almost surely, 2^15323331012 is an apocalyptic number.

15323331012 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 15323331012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19962808320).

15323331012 is an abundant number, since it is smaller than the sum of its proper divisors (24602285628).

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

15323331012 is a wasteful number, since it uses less digits than its factorization.

15323331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15633 (or 15631 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 15323331012 its reverse (21013332351), we get a palindrome (36336663363).

The spelling of 15323331012 in words is "fifteen billion, three hundred twenty-three million, three hundred thirty-one thousand, twelve".