31300132000 has 96 divisors (see below), whose sum is σ = 77422035600. Its totient is φ = 12435788800.

The previous prime is 31300131953. The next prime is 31300132001. The reversal of 31300132000 is 23100313.

It can be written as a sum of positive squares in 8 ways, for example, as 145057936 + 31155074064 = 12044^2 + 176508^2 .

It is not an unprimeable number, because it can be changed into a prime (31300132001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569742 + ... + 622258.

Almost surely, 2^31300132000 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 31300132000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38711017800).

31300132000 is an abundant number, since it is smaller than the sum of its proper divisors (46121903600).

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

31300132000 is a wasteful number, since it uses less digits than its factorization.

31300132000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52691 (or 52673 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 31300132000 its reverse (23100313), we get a palindrome (31323232313).

The spelling of 31300132000 in words is "thirty-one billion, three hundred million, one hundred thirty-two thousand".