2031131130 has 128 divisors (see below), whose sum is σ = 5687193600. Its totient is φ = 454671360.

The previous prime is 2031131077. The next prime is 2031131143. The reversal of 2031131130 is 311311302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3390571 + ... + 3391169.

It is an arithmetic number, because the mean of its divisors is an integer number (44431200).

Almost surely, 2^2031131130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031131130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2843596800).

2031131130 is an abundant number, since it is smaller than the sum of its proper divisors (3656062470).

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

2031131130 is a wasteful number, since it uses less digits than its factorization.

2031131130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2031131130 is about 45068.0721797594. The cubic root of 2031131130 is about 1266.4245498301.

Adding to 2031131130 its reverse (311311302), we get a palindrome (2342442432).

The spelling of 2031131130 in words is "two billion, thirty-one million, one hundred thirty-one thousand, one hundred thirty".