31623023 has 2 divisors, whose sum is σ = 31623024. Its totient is φ = 31623022.

The previous prime is 31622959. The next prime is 31623041. The reversal of 31623023 is 32032613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31623023 - 2⁶ = 31622959 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 31622986 and 31623004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31623223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15811511 + 15811512.

It is an arithmetic number, because the mean of its divisors is an integer number (15811512).

Almost surely, 2^31623023 is an apocalyptic number.

31623023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31623023 is an equidigital number, since it uses as much as digits as its factorization.

31623023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 31623023 is about 5623.4351601134. The cubic root of 31623023 is about 316.2285873424.

Adding to 31623023 its reverse (32032613), we get a palindrome (63655636).

The spelling of 31623023 in words is "thirty-one million, six hundred twenty-three thousand, twenty-three".