3131300000 has 144 divisors (see below), whose sum is σ = 7792798104. Its totient is φ = 1238400000.

The previous prime is 3131299999. The next prime is 3131300041. The reversal of 3131300000 is 31313.

It can be written as a sum of positive squares in 12 ways, for example, as 1759634704 + 1371665296 = 41948^2 + 37036^2 .

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, 17299910 + ... + 17300090.

Almost surely, 2^3131300000 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 3131300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3896399052).

3131300000 is an abundant number, since it is smaller than the sum of its proper divisors (4661498104).

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

3131300000 is an equidigital number, since it uses as much as digits as its factorization.

3131300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 3131300000 is about 55958.0199792666. The cubic root of 3131300000 is about 1462.9906795851.

Adding to 3131300000 its reverse (31313), we get a palindrome (3131331313).

3131300000 divided by its reverse (31313) gives a 5-th power (100000 = 10⁵).

The spelling of 3131300000 in words is "three billion, one hundred thirty-one million, three hundred thousand".