3123020131 has 16 divisors (see below), whose sum is σ = 3894859008. Its totient is φ = 2432757600.

The previous prime is 3123020123. The next prime is 3123020137. The reversal of 3123020131 is 1310203213.

It is not a de Polignac number, because 3123020131 - 2³ = 3123020123 is a prime.

It is a super-2 number, since 2×3123020131² = 19506509477262514322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3123020137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471261 + ... + 477841.

It is an arithmetic number, because the mean of its divisors is an integer number (243428688).

Almost surely, 2^3123020131 is an apocalyptic number.

3123020131 is a deficient number, since it is larger than the sum of its proper divisors (771838877).

3123020131 is a wasteful number, since it uses less digits than its factorization.

3123020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12762.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3123020131 is about 55883.9881450850. The cubic root of 3123020131 is about 1461.7000480345.

Adding to 3123020131 its reverse (1310203213), we get a palindrome (4433223344).

The spelling of 3123020131 in words is "three billion, one hundred twenty-three million, twenty thousand, one hundred thirty-one".