31272023 has 2 divisors, whose sum is σ = 31272024. Its totient is φ = 31272022.

The previous prime is 31272001. The next prime is 31272029. The reversal of 31272023 is 32027213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31272023 - 2¹² = 31267927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31271986 and 31272004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31272029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15636011 + 15636012.

It is an arithmetic number, because the mean of its divisors is an integer number (15636012).

Almost surely, 2^31272023 is an apocalyptic number.

31272023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31272023 is an equidigital number, since it uses as much as digits as its factorization.

31272023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 31272023 is about 5592.1393938277. The cubic root of 31272023 is about 315.0542377422.

Adding to 31272023 its reverse (32027213), we get a palindrome (63299236).

The spelling of 31272023 in words is "thirty-one million, two hundred seventy-two thousand, twenty-three".