313021312131000 has 256 divisors, whose sum is σ = 1094205609169920. Its totient is φ = 73833036480000.

The previous prime is 313021312130981. The next prime is 313021312131001. The reversal of 313021312131000 is 131213120313.

It is a happy number.

It is a super-2 number, since 2×313021312131000² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313021312131001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126961356 + ... + 129403355.

It is an arithmetic number, because the mean of its divisors is an integer number (4274240660820).

Almost surely, 2^{313021312131000} is an apocalyptic number.

313021312131000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313021312131000 is an abundant number, since it is smaller than the sum of its proper divisors (781184297038920).

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

313021312131000 is a wasteful number, since it uses less digits than its factorization.

313021312131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256364783 (or 256364769 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313021312131000 its reverse (131213120313), we get a palindrome (313152525251313).

The spelling of 313021312131000 in words is "three hundred thirteen trillion, twenty-one billion, three hundred twelve million, one hundred thirty-one thousand".