31232030221212 has 48 divisors (see below), whose sum is σ = 76076660540160. Its totient is φ = 9953657410048.

The previous prime is 31232030221127. The next prime is 31232030221229. The reversal of 31232030221212 is 21212203023213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24264762 + ... + 25519457.

It is an arithmetic number, because the mean of its divisors is an integer number (1584930427920).

Almost surely, 2^{31232030221212} is an apocalyptic number.

It is an amenable number.

31232030221212 is an abundant number, since it is smaller than the sum of its proper divisors (44844630318948).

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

31232030221212 is a wasteful number, since it uses less digits than its factorization.

31232030221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49786522 (or 49786520 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31232030221212 its reverse (21212203023213), we get a palindrome (52444233244425).

The spelling of 31232030221212 in words is "thirty-one trillion, two hundred thirty-two billion, thirty million, two hundred twenty-one thousand, two hundred twelve".