31303322112 has 40 divisors (see below), whose sum is σ = 83394010656. Its totient is φ = 10434440192.

The previous prime is 31303322081. The next prime is 31303322177. The reversal of 31303322112 is 21122330313.

It is a super-3 number, since 3×31303322112³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10188348 + ... + 10191419.

Almost surely, 2^31303322112 is an apocalyptic number.

31303322112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31303322112 is an abundant number, since it is smaller than the sum of its proper divisors (52090688544).

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

31303322112 is an equidigital number, since it uses as much as digits as its factorization.

31303322112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20379788 (or 20379772 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31303322112 its reverse (21122330313), we get a palindrome (52425652425).

The spelling of 31303322112 in words is "thirty-one billion, three hundred three million, three hundred twenty-two thousand, one hundred twelve".