31422320244 has 72 divisors (see below), whose sum is σ = 92263761408. Its totient is φ = 8830624320.

The previous prime is 31422320233. The next prime is 31422320249. The reversal of 31422320244 is 44202322413.

31422320244 is a `hidden beast` number, since 31 + 422 + 3 + 202 + 4 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422320249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006692 + ... + 1037435.

Almost surely, 2^31422320244 is an apocalyptic number.

It is an amenable number.

31422320244 is an abundant number, since it is smaller than the sum of its proper divisors (60841441164).

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

31422320244 is a wasteful number, since it uses less digits than its factorization.

31422320244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044205 (or 2044200 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 31422320244 its reverse (44202322413), we get a palindrome (75624642657).

The spelling of 31422320244 in words is "thirty-one billion, four hundred twenty-two million, three hundred twenty thousand, two hundred forty-four".