3123431020 has 24 divisors (see below), whose sum is σ = 6562432800. Its totient is φ = 1248757632.

The previous prime is 3123430969. The next prime is 3123431021. The reversal of 3123431020 is 201343213.

It is not an unprimeable number, because it can be changed into a prime (3123431021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4401 + ... + 79159.

It is an arithmetic number, because the mean of its divisors is an integer number (273434700).

Almost surely, 2^3123431020 is an apocalyptic number.

It is an amenable number.

3123431020 is an abundant number, since it is smaller than the sum of its proper divisors (3439001780).

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

3123431020 is a wasteful number, since it uses less digits than its factorization.

3123431020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76857 (or 76855 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3123431020 is about 55887.6642918632. The cubic root of 3123431020 is about 1461.7641494607.

Adding to 3123431020 its reverse (201343213), we get a palindrome (3324774233).

The spelling of 3123431020 in words is "three billion, one hundred twenty-three million, four hundred thirty-one thousand, twenty".