3131144019 has 20 divisors (see below), whose sum is σ = 4696987680. Its totient is φ = 2078682480.

The previous prime is 3131143999. The next prime is 3131144039. The reversal of 3131144019 is 9104411313.

It is an interprime number because it is at equal distance from previous prime (3131143999) and next prime (3131144039).

It is not a de Polignac number, because 3131144019 - 2⁵ = 3131143987 is a prime.

It is a super-2 number, since 2×3131144019² = 19608125735438944722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3131143983 and 3131144001.

It is not an unprimeable number, because it can be changed into a prime (3131144039) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61512 + ... + 100229.

It is an arithmetic number, because the mean of its divisors is an integer number (234849384).

Almost surely, 2^3131144019 is an apocalyptic number.

3131144019 is a deficient number, since it is larger than the sum of its proper divisors (1565843661).

3131144019 is a wasteful number, since it uses less digits than its factorization.

3131144019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161992 (or 161983 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3131144019 is about 55956.6262296075. The cubic root of 3131144019 is about 1462.9663869550.

The spelling of 3131144019 in words is "three billion, one hundred thirty-one million, one hundred forty-four thousand, nineteen".