31113253 has 2 divisors, whose sum is σ = 31113254. Its totient is φ = 31113252.

The previous prime is 31113223. The next prime is 31113283. The reversal of 31113253 is 35231113.

It is a balanced prime because it is at equal distance from previous prime (31113223) and next prime (31113283).

It can be written as a sum of positive squares in only one way, i.e., 22071204 + 9042049 = 4698^2 + 3007^2 .

It is a cyclic number.

It is not a de Polignac number, because 31113253 - 2⁵ = 31113221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31113253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31113223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556626 + 15556627.

It is an arithmetic number, because the mean of its divisors is an integer number (15556627).

Almost surely, 2^31113253 is an apocalyptic number.

It is an amenable number.

31113253 is a deficient number, since it is larger than the sum of its proper divisors (1).

31113253 is an equidigital number, since it uses as much as digits as its factorization.

31113253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 19.

The square root of 31113253 is about 5577.9255104384. The cubic root of 31113253 is about 314.5201495528.

Adding to 31113253 its reverse (35231113), we get a palindrome (66344366).

The spelling of 31113253 in words is "thirty-one million, one hundred thirteen thousand, two hundred fifty-three".