423234252165 has 32 divisors (see below), whose sum is σ = 682454183040. Its totient is φ = 223967084544.

The previous prime is 423234252157. The next prime is 423234252173. The reversal of 423234252165 is 561252432324.

It is an interprime number because it is at equal distance from previous prime (423234252157) and next prime (423234252173).

It is not a de Polignac number, because 423234252165 - 2³ = 423234252157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3478437 + ... + 3598053.

It is an arithmetic number, because the mean of its divisors is an integer number (21326693220).

Almost surely, 2^423234252165 is an apocalyptic number.

It is an amenable number.

423234252165 is a deficient number, since it is larger than the sum of its proper divisors (259219930875).

423234252165 is a wasteful number, since it uses less digits than its factorization.

423234252165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121461.

The product of its digits is 345600, while the sum is 39.

Adding to 423234252165 its reverse (561252432324), we get a palindrome (984486684489).

The spelling of 423234252165 in words is "four hundred twenty-three billion, two hundred thirty-four million, two hundred fifty-two thousand, one hundred sixty-five".