2112320331 has 12 divisors (see below), whose sum is σ = 3328504920. Its totient is φ = 1280194080.

The previous prime is 2112320321. The next prime is 2112320387. The reversal of 2112320331 is 1330232112.

2112320331 is a `hidden beast` number, since 2 + 1 + 12 + 320 + 331 = 666.

It is not a de Polignac number, because 2112320331 - 2¹⁸ = 2112058187 is a prime.

It is a super-2 number, since 2×2112320331² = 8923794361511899122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112320321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10668186 + ... + 10668383.

It is an arithmetic number, because the mean of its divisors is an integer number (277375410).

Almost surely, 2^2112320331 is an apocalyptic number.

2112320331 is a deficient number, since it is larger than the sum of its proper divisors (1216184589).

2112320331 is a wasteful number, since it uses less digits than its factorization.

2112320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21336586 (or 21336583 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2112320331 is about 45959.9861945149. The cubic root of 2112320331 is about 1283.0785944186.

Adding to 2112320331 its reverse (1330232112), we get a palindrome (3442552443).

The spelling of 2112320331 in words is "two billion, one hundred twelve million, three hundred twenty thousand, three hundred thirty-one".