423954507122401 has 2 divisors, whose sum is σ = 423954507122402. Its totient is φ = 423954507122400.

The previous prime is 423954507122381. The next prime is 423954507122411. The reversal of 423954507122401 is 104221705459324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252306252990801 + 171648254131600 = 15884151^2 + 13101460^2 .

It is a cyclic number.

It is not a de Polignac number, because 423954507122401 - 2⁷ = 423954507122273 is a prime.

It is not a weakly prime, because it can be changed into another prime (423954507122411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211977253561200 + 211977253561201.

It is an arithmetic number, because the mean of its divisors is an integer number (211977253561201).

Almost surely, 2^{423954507122401} is an apocalyptic number.

It is an amenable number.

423954507122401 is a deficient number, since it is larger than the sum of its proper divisors (1).

423954507122401 is an equidigital number, since it uses as much as digits as its factorization.

423954507122401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 423954507122401 in words is "four hundred twenty-three trillion, nine hundred fifty-four billion, five hundred seven million, one hundred twenty-two thousand, four hundred one".