423555040320127 has 2 divisors, whose sum is σ = 423555040320128. Its totient is φ = 423555040320126.

The previous prime is 423555040320119. The next prime is 423555040320169. The reversal of 423555040320127 is 721023040555324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423555040320127 - 2³ = 423555040320119 is a prime.

It is a super-2 number, since 2×423555040320127² (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 (423555040320227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211777520160063 + 211777520160064.

It is an arithmetic number, because the mean of its divisors is an integer number (211777520160064).

Almost surely, 2^{423555040320127} is an apocalyptic number.

423555040320127 is a deficient number, since it is larger than the sum of its proper divisors (1).

423555040320127 is an equidigital number, since it uses as much as digits as its factorization.

423555040320127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 43.

The spelling of 423555040320127 in words is "four hundred twenty-three trillion, five hundred fifty-five billion, forty million, three hundred twenty thousand, one hundred twenty-seven".