31112230331000 has 128 divisors (see below), whose sum is σ = 89603223615360. Its totient is φ = 9846508032000.

The previous prime is 31112230330897. The next prime is 31112230331023. The reversal of 31112230331000 is 13303221113.

It is a super-2 number, since 2×31112230331000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170855321 + ... + 171037320.

It is an arithmetic number, because the mean of its divisors is an integer number (700025184495).

Almost surely, 2^{31112230331000} is an apocalyptic number.

It is an amenable number.

31112230331000 is an abundant number, since it is smaller than the sum of its proper divisors (58490993284360).

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

31112230331000 is a wasteful number, since it uses less digits than its factorization.

31112230331000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341892682 (or 341892668 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31112230331000 its reverse (13303221113), we get a palindrome (31125533552113).

The spelling of 31112230331000 in words is "thirty-one trillion, one hundred twelve billion, two hundred thirty million, three hundred thirty-one thousand".