31233012211112 has 16 divisors (see below), whose sum is σ = 59364115676340. Its totient is φ = 15402581364096.

The previous prime is 31233012211099. The next prime is 31233012211151. The reversal of 31233012211112 is 21111221033213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31213161091876 + 19851119236 = 5586874^2 + 140894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26740592063 + ... + 26740593230.

Almost surely, 2^{31233012211112} is an apocalyptic number.

It is an amenable number.

31233012211112 is a deficient number, since it is larger than the sum of its proper divisors (28131103465228).

31233012211112 is a wasteful number, since it uses less digits than its factorization.

31233012211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53481185372 (or 53481185368 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 31233012211112 its reverse (21111221033213), we get a palindrome (52344233244325).

The spelling of 31233012211112 in words is "thirty-one trillion, two hundred thirty-three billion, twelve million, two hundred eleven thousand, one hundred twelve".