210939023 has 2 divisors, whose sum is σ = 210939024. Its totient is φ = 210939022.

The previous prime is 210938971. The next prime is 210939031. The reversal of 210939023 is 320939012.

210939023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210939023 - 2¹⁴ = 210922639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210932023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105469511 + 105469512.

It is an arithmetic number, because the mean of its divisors is an integer number (105469512).

Almost surely, 2^210939023 is an apocalyptic number.

210939023 is a deficient number, since it is larger than the sum of its proper divisors (1).

210939023 is an equidigital number, since it uses as much as digits as its factorization.

210939023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 210939023 is about 14523.7399797711. The cubic root of 210939023 is about 595.2768271435.

The spelling of 210939023 in words is "two hundred ten million, nine hundred thirty-nine thousand, twenty-three".