31230131300 has 36 divisors (see below), whose sum is σ = 67777846836. Its totient is φ = 12490492800.

The previous prime is 31230131293. The next prime is 31230131323. The reversal of 31230131300 is 313103213.

It can be written as a sum of positive squares in 6 ways, for example, as 67996516 + 31162134784 = 8246^2 + 176528^2 .

It is a super-2 number, since 2×31230131300² (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 11 ways as a sum of consecutive naturals, for example, 1112234 + ... + 1139966.

Almost surely, 2^31230131300 is an apocalyptic number.

It is an amenable number.

31230131300 is an abundant number, since it is smaller than the sum of its proper divisors (36547715536).

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

31230131300 is a wasteful number, since it uses less digits than its factorization.

31230131300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39008 (or 39001 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31230131300 its reverse (313103213), we get a palindrome (31543234513).

The spelling of 31230131300 in words is "thirty-one billion, two hundred thirty million, one hundred thirty-one thousand, three hundred".