31030889800 has 96 divisors (see below), whose sum is σ = 74025262080. Its totient is φ = 12090758400.

The previous prime is 31030889797. The next prime is 31030889849. The reversal of 31030889800 is 898803013.

It is a super-2 number, since 2×31030889800² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3289090 + ... + 3298510.

It is an arithmetic number, because the mean of its divisors is an integer number (771096480).

Almost surely, 2^31030889800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31030889800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37012631040).

31030889800 is an abundant number, since it is smaller than the sum of its proper divisors (42994372280).

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

31030889800 is a wasteful number, since it uses less digits than its factorization.

31030889800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863 (or 9854 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 31030889800 in words is "thirty-one billion, thirty million, eight hundred eighty-nine thousand, eight hundred".