31010344212 has 48 divisors (see below), whose sum is σ = 72931763520. Its totient is φ = 10254945792.

The previous prime is 31010344153. The next prime is 31010344217. The reversal of 31010344212 is 21244301013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010344217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1229068 + ... + 1254044.

It is an arithmetic number, because the mean of its divisors is an integer number (1519411740).

Almost surely, 2^31010344212 is an apocalyptic number.

It is an amenable number.

31010344212 is an abundant number, since it is smaller than the sum of its proper divisors (41921419308).

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

31010344212 is a wasteful number, since it uses less digits than its factorization.

31010344212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25800 (or 25798 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31010344212 its reverse (21244301013), we get a palindrome (52254645225).

The spelling of 31010344212 in words is "thirty-one billion, ten million, three hundred forty-four thousand, two hundred twelve".