31122012330200 has 96 divisors (see below), whose sum is σ = 79823670534000. Its totient is φ = 11189936947200.

The previous prime is 31122012330191. The next prime is 31122012330239. The reversal of 31122012330200 is 203321022113.

It is a super-2 number, since 2×31122012330200² (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 23 ways as a sum of consecutive naturals, for example, 79278185 + ... + 79669784.

Almost surely, 2^{31122012330200} is an apocalyptic number.

It is an amenable number.

31122012330200 is an abundant number, since it is smaller than the sum of its proper divisors (48701658203800).

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

31122012330200 is a wasteful number, since it uses less digits than its factorization.

31122012330200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158948085 (or 158948076 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31122012330200 its reverse (203321022113), we get a palindrome (31325333352313).

The spelling of 31122012330200 in words is "thirty-one trillion, one hundred twenty-two billion, twelve million, three hundred thirty thousand, two hundred".