2031553131 has 24 divisors (see below), whose sum is σ = 2983138560. Its totient is φ = 1227284784.

The previous prime is 2031553127. The next prime is 2031553133. The reversal of 2031553131 is 1313551302.

It is not a de Polignac number, because 2031553131 - 2² = 2031553127 is a prime.

It is a super-2 number, since 2×2031553131² = 8254416248151806322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031553133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15871 + ... + 65688.

It is an arithmetic number, because the mean of its divisors is an integer number (124297440).

Almost surely, 2^2031553131 is an apocalyptic number.

2031553131 is a deficient number, since it is larger than the sum of its proper divisors (951585429).

2031553131 is a wasteful number, since it uses less digits than its factorization.

2031553131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81623 (or 81604 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 2031553131 is about 45072.7537543470. The cubic root of 2031553131 is about 1266.5122506207.

The spelling of 2031553131 in words is "two billion, thirty-one million, five hundred fifty-three thousand, one hundred thirty-one".