3131144020 has 24 divisors (see below), whose sum is σ = 6668016768. Its totient is φ = 1234816800.

The previous prime is 3131143999. The next prime is 3131144039. The reversal of 3131144020 is 204411313.

It is a congruent number.

It is an unprimeable number.

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, 1101096 + ... + 1103935.

It is an arithmetic number, because the mean of its divisors is an integer number (277834032).

Almost surely, 2^3131144020 is an apocalyptic number.

It is an amenable number.

3131144020 is an abundant number, since it is smaller than the sum of its proper divisors (3536872748).

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

3131144020 is a wasteful number, since it uses less digits than its factorization.

3131144020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205111 (or 2205109 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3131144020 is about 55956.6262385430. The cubic root of 3131144020 is about 1462.9663871107.

Adding to 3131144020 its reverse (204411313), we get a palindrome (3335555333).

The spelling of 3131144020 in words is "three billion, one hundred thirty-one million, one hundred forty-four thousand, twenty".