2031130404 has 60 divisors (see below), whose sum is σ = 5317696384. Its totient is φ = 676033776.

The previous prime is 2031130399. The next prime is 2031130421. The reversal of 2031130404 is 4040311302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 231237 + ... + 239859.

Almost surely, 2^2031130404 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 2031130404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2658848192).

2031130404 is an abundant number, since it is smaller than the sum of its proper divisors (3286565980).

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

2031130404 is a wasteful number, since it uses less digits than its factorization.

2031130404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366 (or 9355 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2031130404 is about 45068.0641252761. The cubic root of 2031130404 is about 1266.4243989413.

Adding to 2031130404 its reverse (4040311302), we get a palindrome (6071441706).

The spelling of 2031130404 in words is "two billion, thirty-one million, one hundred thirty thousand, four hundred four".