12313021000 has 64 divisors (see below), whose sum is σ = 32928554880. Its totient is φ = 4221604800.

The previous prime is 12313020971. The next prime is 12313021013. The reversal of 12313021000 is 12031321.

It is a super-2 number, since 2×12313021000² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872502 + ... + 886501.

It is an arithmetic number, because the mean of its divisors is an integer number (514508670).

Almost surely, 2^12313021000 is an apocalyptic number.

12313021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313021000 is an abundant number, since it is smaller than the sum of its proper divisors (20615533880).

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

12313021000 is a wasteful number, since it uses less digits than its factorization.

12313021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759031 (or 1759017 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12313021000 its reverse (12031321), we get a palindrome (12325052321).

The spelling of 12313021000 in words is "twelve billion, three hundred thirteen million, twenty-one thousand".