31268223 has 30 divisors (see below), whose sum is σ = 52726024. Its totient is φ = 17855208.

The previous prime is 31268221. The next prime is 31268231. The reversal of 31268223 is 32286213.

It is not a de Polignac number, because 31268223 - 2¹ = 31268221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31268221) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 20886 + ... + 22332.

Almost surely, 2^31268223 is an apocalyptic number.

31268223 is a deficient number, since it is larger than the sum of its proper divisors (21457801).

31268223 is an equidigital number, since it uses as much as digits as its factorization.

31268223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1457 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 31268223 is about 5591.7996208734. The cubic root of 31268223 is about 315.0414760201.

The spelling of 31268223 in words is "thirty-one million, two hundred sixty-eight thousand, two hundred twenty-three".