404253001123 has 4 divisors (see below), whose sum is σ = 404254707120. Its totient is φ = 404251295128.

The previous prime is 404253001081. The next prime is 404253001153. The reversal of 404253001123 is 321100352404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404253001123 - 2²⁵ = 404219446691 is a prime.

It is a super-2 number, since 2×404253001123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404253001153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426463 + ... + 995176.

It is an arithmetic number, because the mean of its divisors is an integer number (101063676780).

Almost surely, 2^404253001123 is an apocalyptic number.

404253001123 is a deficient number, since it is larger than the sum of its proper divisors (1705997).

404253001123 is a wasteful number, since it uses less digits than its factorization.

404253001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705996.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 404253001123 its reverse (321100352404), we get a palindrome (725353353527).

The spelling of 404253001123 in words is "four hundred four billion, two hundred fifty-three million, one thousand, one hundred twenty-three".