920317400239 has 2 divisors, whose sum is σ = 920317400240. Its totient is φ = 920317400238.

The previous prime is 920317400221. The next prime is 920317400269. The reversal of 920317400239 is 932004713029.

920317400239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920317400239 - 2¹¹ = 920317398191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920317400269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460158700119 + 460158700120.

It is an arithmetic number, because the mean of its divisors is an integer number (460158700120).

Almost surely, 2^920317400239 is an apocalyptic number.

920317400239 is a deficient number, since it is larger than the sum of its proper divisors (1).

920317400239 is an equidigital number, since it uses as much as digits as its factorization.

920317400239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 920317400239 in words is "nine hundred twenty billion, three hundred seventeen million, four hundred thousand, two hundred thirty-nine".