465142128123 has 16 divisors (see below), whose sum is σ = 622617207680. Its totient is φ = 308882984256.

The previous prime is 465142128089. The next prime is 465142128131. The reversal of 465142128123 is 321821241564.

It is a de Polignac number, because none of the positive numbers 2^k-465142128123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (465142128133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634911 + ... + 1154727.

It is an arithmetic number, because the mean of its divisors is an integer number (38913575480).

Almost surely, 2^465142128123 is an apocalyptic number.

465142128123 is a deficient number, since it is larger than the sum of its proper divisors (157475079557).

465142128123 is a wasteful number, since it uses less digits than its factorization.

465142128123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520986.

The product of its digits is 92160, while the sum is 39.

Adding to 465142128123 its reverse (321821241564), we get a palindrome (786963369687).

The spelling of 465142128123 in words is "four hundred sixty-five billion, one hundred forty-two million, one hundred twenty-eight thousand, one hundred twenty-three".