12313112021000 has 128 divisors (see below), whose sum is σ = 32941527240960. Its totient is φ = 4220004096000.

The previous prime is 12313112020997. The next prime is 12313112021029. The reversal of 12313112021000 is 12021131321.

It is a super-2 number, since 2×12313112021000² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12313112021000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17811815 + ... + 18490185.

It is an arithmetic number, because the mean of its divisors is an integer number (257355681570).

Almost surely, 2^{12313112021000} is an apocalyptic number.

12313112021000 is a gapful number since it is divisible by the number (10) 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 12313112021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16470763620480).

12313112021000 is an abundant number, since it is smaller than the sum of its proper divisors (20628415219960).

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

12313112021000 is a wasteful number, since it uses less digits than its factorization.

12313112021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680992 (or 680978 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12313112021000 its reverse (12021131321), we get a palindrome (12325133152321).

The spelling of 12313112021000 in words is "twelve trillion, three hundred thirteen billion, one hundred twelve million, twenty-one thousand".