31380705023 has 2 divisors, whose sum is σ = 31380705024. Its totient is φ = 31380705022.

The previous prime is 31380704987. The next prime is 31380705029. The reversal of 31380705023 is 32050708313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31380705023 - 2⁶ = 31380704959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31380705029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15690352511 + 15690352512.

It is an arithmetic number, because the mean of its divisors is an integer number (15690352512).

Almost surely, 2^31380705023 is an apocalyptic number.

31380705023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31380705023 is an equidigital number, since it uses as much as digits as its factorization.

31380705023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 31380705023 in words is "thirty-one billion, three hundred eighty million, seven hundred five thousand, twenty-three".