31343023 has 2 divisors, whose sum is σ = 31343024. Its totient is φ = 31343022.

The previous prime is 31342991. The next prime is 31343057. The reversal of 31343023 is 32034313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31343023 - 2⁵ = 31342991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31343063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671511 + 15671512.

It is an arithmetic number, because the mean of its divisors is an integer number (15671512).

Almost surely, 2^31343023 is an apocalyptic number.

31343023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31343023 is an equidigital number, since it uses as much as digits as its factorization.

31343023 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 19.

The square root of 31343023 is about 5598.4839912248. The cubic root of 31343023 is about 315.2924905670.

Adding to 31343023 its reverse (32034313), we get a palindrome (63377336).

The spelling of 31343023 in words is "thirty-one million, three hundred forty-three thousand, twenty-three".