2131144031 has 4 divisors (see below), whose sum is σ = 2131243200. Its totient is φ = 2131044864.

The previous prime is 2131144013. The next prime is 2131144033. The reversal of 2131144031 is 1304411312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2131144031 - 2¹⁸ = 2130881887 is a prime.

It is a super-2 number, since 2×2131144031² = 9083549761733857922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131143994 and 2131144012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131144033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351 + ... + 65328.

It is an arithmetic number, because the mean of its divisors is an integer number (532810800).

Almost surely, 2^2131144031 is an apocalyptic number.

2131144031 is a deficient number, since it is larger than the sum of its proper divisors (99169).

2131144031 is an equidigital number, since it uses as much as digits as its factorization.

2131144031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99168.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2131144031 is about 46164.3155586650. The cubic root of 2131144031 is about 1286.8786645486.

Adding to 2131144031 its reverse (1304411312), we get a palindrome (3435555343).

The spelling of 2131144031 in words is "two billion, one hundred thirty-one million, one hundred forty-four thousand, thirty-one".