31036800000 has 528 divisors, whose sum is σ = 107076834144. Its totient is φ = 7987200000.

The previous prime is 31036799993. The next prime is 31036800013. The reversal of 31036800000 is 863013.

It is a self number, because there is not a number n which added to its sum of digits gives 31036800000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 508799970 + ... + 508800030.

Almost surely, 2^31036800000 is an apocalyptic number.

31036800000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31036800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53538417072).

31036800000 is an abundant number, since it is smaller than the sum of its proper divisors (76040034144).

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

31036800000 is an frugal number, since it uses more digits than its factorization.

31036800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The spelling of 31036800000 in words is "thirty-one billion, thirty-six million, eight hundred thousand".