431111055321553 has 4 divisors (see below), whose sum is σ = 435140130605040. Its totient is φ = 427081980038068.

The previous prime is 431111055321509. The next prime is 431111055321559. The reversal of 431111055321553 is 355123550111134.

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 431111055321553 - 2⁹ = 431111055321041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431111055321559) 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, 2014537641583 + ... + 2014537641796.

It is an arithmetic number, because the mean of its divisors is an integer number (108785032651260).

Almost surely, 2^{431111055321553} is an apocalyptic number.

It is an amenable number.

431111055321553 is a deficient number, since it is larger than the sum of its proper divisors (4029075283487).

431111055321553 is a wasteful number, since it uses less digits than its factorization.

431111055321553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029075283486.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 431111055321553 in words is "four hundred thirty-one trillion, one hundred eleven billion, fifty-five million, three hundred twenty-one thousand, five hundred fifty-three".