31023212110112 has 48 divisors (see below), whose sum is σ = 61131492338112. Its totient is φ = 15497757960960.

The previous prime is 31023212110103. The next prime is 31023212110129. The reversal of 31023212110112 is 21101121232013.

It is a super-2 number, since 2×31023212110112² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247938638 + ... + 248063730.

It is an arithmetic number, because the mean of its divisors is an integer number (1273572757044).

Almost surely, 2^{31023212110112} is an apocalyptic number.

31023212110112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31023212110112 is a deficient number, since it is larger than the sum of its proper divisors (30108280228000).

31023212110112 is a wasteful number, since it uses less digits than its factorization.

31023212110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131961 (or 131953 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 31023212110112 its reverse (21101121232013), we get a palindrome (52124333342125).

The spelling of 31023212110112 in words is "thirty-one trillion, twenty-three billion, two hundred twelve million, one hundred ten thousand, one hundred twelve".