431255544022541 has 4 divisors (see below), whose sum is σ = 492863478882912. Its totient is φ = 369647609162172.

The previous prime is 431255544022519. The next prime is 431255544022579. The reversal of 431255544022541 is 145220445552134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431255544022541 - 2¹⁰ = 431255544021517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431255544022441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30803967430175 + ... + 30803967430188.

It is an arithmetic number, because the mean of its divisors is an integer number (123215869720728).

Almost surely, 2^{431255544022541} is an apocalyptic number.

It is an amenable number.

431255544022541 is a deficient number, since it is larger than the sum of its proper divisors (61607934860371).

431255544022541 is an equidigital number, since it uses as much as digits as its factorization.

431255544022541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61607934860370.

The product of its (nonzero) digits is 3840000, while the sum is 47.

Adding to 431255544022541 its reverse (145220445552134), we get a palindrome (576475989574675).

The spelling of 431255544022541 in words is "four hundred thirty-one trillion, two hundred fifty-five billion, five hundred forty-four million, twenty-two thousand, five hundred forty-one".