31039943480 has 128 divisors (see below), whose sum is σ = 89694259200. Its totient is φ = 9396490752.

The previous prime is 31039943339. The next prime is 31039943489. The reversal of 31039943480 is 8434993013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31039943489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101660 + ... + 269099.

It is an arithmetic number, because the mean of its divisors is an integer number (700736400).

Almost surely, 2^31039943480 is an apocalyptic number.

It is an amenable number.

31039943480 is an abundant number, since it is smaller than the sum of its proper divisors (58654315720).

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

31039943480 is a wasteful number, since it uses less digits than its factorization.

31039943480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370813 (or 370809 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 31039943480 in words is "thirty-one billion, thirty-nine million, nine hundred forty-three thousand, four hundred eighty".