31303221122112 has 28 divisors (see below), whose sum is σ = 82823105886096. Its totient is φ = 10434407040640.

The previous prime is 31303221122101. The next prime is 31303221122179. The reversal of 31303221122112 is 21122112230313.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 81518804814 + ... + 81518805197.

Almost surely, 2^{31303221122112} is an apocalyptic number.

31303221122112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31303221122112 is an abundant number, since it is smaller than the sum of its proper divisors (51519884763984).

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

31303221122112 is a wasteful number, since it uses less digits than its factorization.

31303221122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163037610026 (or 163037610016 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31303221122112 its reverse (21122112230313), we get a palindrome (52425333352425).

The spelling of 31303221122112 in words is "thirty-one trillion, three hundred three billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred twelve".