31233120103212 has 96 divisors (see below), whose sum is σ = 73909169241600. Its totient is φ = 10264590604800.

The previous prime is 31233120103183. The next prime is 31233120103267. The reversal of 31233120103212 is 21230102133213.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2077906137 + ... + 2077921167.

It is an arithmetic number, because the mean of its divisors is an integer number (769887179600).

Almost surely, 2^{31233120103212} is an apocalyptic number.

It is an amenable number.

31233120103212 is an abundant number, since it is smaller than the sum of its proper divisors (42676049138388).

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

31233120103212 is a wasteful number, since it uses less digits than its factorization.

31233120103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22887 (or 22885 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31233120103212 its reverse (21230102133213), we get a palindrome (52463222236425).

The spelling of 31233120103212 in words is "thirty-one trillion, two hundred thirty-three billion, one hundred twenty million, one hundred three thousand, two hundred twelve".