239423957535223 has 2 divisors, whose sum is σ = 239423957535224. Its totient is φ = 239423957535222.

The previous prime is 239423957535181. The next prime is 239423957535263. The reversal of 239423957535223 is 322535759324932.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239423957535223 is a prime.

It is a super-2 number, since 2×239423957535223² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239423957535263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119711978767611 + 119711978767612.

It is an arithmetic number, because the mean of its divisors is an integer number (119711978767612).

Almost surely, 2^{239423957535223} is an apocalyptic number.

239423957535223 is a deficient number, since it is larger than the sum of its proper divisors (1).

239423957535223 is an equidigital number, since it uses as much as digits as its factorization.

239423957535223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416000, while the sum is 64.

The spelling of 239423957535223 in words is "two hundred thirty-nine trillion, four hundred twenty-three billion, nine hundred fifty-seven million, five hundred thirty-five thousand, two hundred twenty-three".