31043423244 has 24 divisors (see below), whose sum is σ = 73662361920. Its totient is φ = 10172420944.

The previous prime is 31043423233. The next prime is 31043423267. The reversal of 31043423244 is 44232434013.

It is a happy number.

It is a super-2 number, since 2×31043423244² (a number of 22 digits) contains 22 as substring.

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, 21922614 + ... + 21924029.

It is an arithmetic number, because the mean of its divisors is an integer number (3069265080).

Almost surely, 2^31043423244 is an apocalyptic number.

It is an amenable number.

31043423244 is an abundant number, since it is smaller than the sum of its proper divisors (42618938676).

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

31043423244 is a wasteful number, since it uses less digits than its factorization.

31043423244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43846709 (or 43846707 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 31043423244 its reverse (44232434013), we get a palindrome (75275857257).

The spelling of 31043423244 in words is "thirty-one billion, forty-three million, four hundred twenty-three thousand, two hundred forty-four".