3131120430 has 48 divisors (see below), whose sum is σ = 8421641280. Its totient is φ = 806172864.

The previous prime is 3131120411. The next prime is 3131120467. The reversal of 3131120430 is 340211313.

3131120430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 597222 + ... + 602441.

It is an arithmetic number, because the mean of its divisors is an integer number (175450860).

Almost surely, 2^3131120430 is an apocalyptic number.

3131120430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3131120430 is an abundant number, since it is smaller than the sum of its proper divisors (5290520850).

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

3131120430 is a wasteful number, since it uses less digits than its factorization.

3131120430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199705 (or 1199702 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3131120430 is about 55956.4154498838. The cubic root of 3131120430 is about 1462.9627131113.

Adding to 3131120430 its reverse (340211313), we get a palindrome (3471331743).

The spelling of 3131120430 in words is "three billion, one hundred thirty-one million, one hundred twenty thousand, four hundred thirty".