423340698953 has 2 divisors, whose sum is σ = 423340698954. Its totient is φ = 423340698952.

The previous prime is 423340698883. The next prime is 423340698983. The reversal of 423340698953 is 359896043324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378554711824 + 44785987129 = 615268^2 + 211627^2 .

It is a cyclic number.

It is not a de Polignac number, because 423340698953 - 2³⁶ = 354621222217 is a prime.

It is not a weakly prime, because it can be changed into another prime (423340698983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211670349476 + 211670349477.

It is an arithmetic number, because the mean of its divisors is an integer number (211670349477).

Almost surely, 2^423340698953 is an apocalyptic number.

It is an amenable number.

423340698953 is a deficient number, since it is larger than the sum of its proper divisors (1).

423340698953 is an equidigital number, since it uses as much as digits as its factorization.

423340698953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 56.

The spelling of 423340698953 in words is "four hundred twenty-three billion, three hundred forty million, six hundred ninety-eight thousand, nine hundred fifty-three".