31112213313000 has 64 divisors (see below), whose sum is σ = 97070105545920. Its totient is φ = 8296590216000.

The previous prime is 31112213312993. The next prime is 31112213313023. The reversal of 31112213313000 is 31331221113.

It is a happy number.

It is a super-2 number, since 2×31112213313000² (a number of 28 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, 5185365886 + ... + 5185371885.

It is an arithmetic number, because the mean of its divisors is an integer number (1516720399155).

Almost surely, 2^{31112213313000} is an apocalyptic number.

31112213313000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31112213313000 is an abundant number, since it is smaller than the sum of its proper divisors (65957892232920).

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

31112213313000 is a wasteful number, since it uses less digits than its factorization.

31112213313000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370737795 (or 10370737781 counting only the distinct ones).

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

Adding to 31112213313000 its reverse (31331221113), we get a palindrome (31143544534113).

The spelling of 31112213313000 in words is "thirty-one trillion, one hundred twelve billion, two hundred thirteen million, three hundred thirteen thousand".