31324412212 has 24 divisors (see below), whose sum is σ = 55510497504. Its totient is φ = 15465225312.

The previous prime is 31324412209. The next prime is 31324412233. The reversal of 31324412212 is 21221442313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12198 + ... + 250594.

It is an arithmetic number, because the mean of its divisors is an integer number (2312937396).

Almost surely, 2^31324412212 is an apocalyptic number.

It is an amenable number.

31324412212 is a deficient number, since it is larger than the sum of its proper divisors (24186085292).

31324412212 is a wasteful number, since it uses less digits than its factorization.

31324412212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238815 (or 238813 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 31324412212 its reverse (21221442313), we get a palindrome (52545854525).

The spelling of 31324412212 in words is "thirty-one billion, three hundred twenty-four million, four hundred twelve thousand, two hundred twelve".