31052131 has 8 divisors (see below), whose sum is σ = 34205184. Its totient is φ = 27954120.

The previous prime is 31052123. The next prime is 31052167. The reversal of 31052131 is 13125013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31052131 - 2³ = 31052123 is a prime.

It is a super-2 number, since 2×31052131² = 1928469679282322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31052431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12571 + ... + 14836.

It is an arithmetic number, because the mean of its divisors is an integer number (4275648).

Almost surely, 2^31052131 is an apocalyptic number.

31052131 is a deficient number, since it is larger than the sum of its proper divisors (3153053).

31052131 is a wasteful number, since it uses less digits than its factorization.

31052131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27521.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 31052131 is about 5572.4438983268. The cubic root of 31052131 is about 314.3140562103.

Adding to 31052131 its reverse (13125013), we get a palindrome (44177144).

It can be divided in two parts, 310 and 52131, that added together give a square (52441 = 229²).

The spelling of 31052131 in words is "thirty-one million, fifty-two thousand, one hundred thirty-one".