404143242312231 has 48 divisors (see below), whose sum is σ = 606286872828000. Its totient is φ = 259196945255424.

The previous prime is 404143242312149. The next prime is 404143242312289. The reversal of 404143242312231 is 132213242341404.

404143242312231 is a `hidden beast` number, since 4 + 0 + 4 + 1 + 4 + 3 + 2 + 423 + 1 + 223 + 1 = 666.

It is not a de Polignac number, because 404143242312231 - 2²⁶ = 404143175203367 is a prime.

It is a super-2 number, since 2×404143242312231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404143242312431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2766155620 + ... + 2766301718.

It is an arithmetic number, because the mean of its divisors is an integer number (12630976517250).

Almost surely, 2^{404143242312231} is an apocalyptic number.

404143242312231 is a deficient number, since it is larger than the sum of its proper divisors (202143630515769).

404143242312231 is a wasteful number, since it uses less digits than its factorization.

404143242312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239568 (or 239565 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 404143242312231 its reverse (132213242341404), we get a palindrome (536356484653635).

The spelling of 404143242312231 in words is "four hundred four trillion, one hundred forty-three billion, two hundred forty-two million, three hundred twelve thousand, two hundred thirty-one".