31020441212 has 48 divisors (see below), whose sum is σ = 57763964160. Its totient is φ = 14525693952.

The previous prime is 31020441197. The next prime is 31020441239. The reversal of 31020441212 is 21214402013.

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, 14569364 + ... + 14571492.

It is an arithmetic number, because the mean of its divisors is an integer number (1203415920).

Almost surely, 2^31020441212 is an apocalyptic number.

It is an amenable number.

31020441212 is a deficient number, since it is larger than the sum of its proper divisors (26743522948).

31020441212 is a wasteful number, since it uses less digits than its factorization.

31020441212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31020441212 its reverse (21214402013), we get a palindrome (52234843225).

The spelling of 31020441212 in words is "thirty-one billion, twenty million, four hundred forty-one thousand, two hundred twelve".