431023111344443 has 4 divisors (see below), whose sum is σ = 431023155955560. Its totient is φ = 431023066733328.

The previous prime is 431023111344431. The next prime is 431023111344467. The reversal of 431023111344443 is 344443111320134.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 431023111344443 - 2²⁰ = 431023110295867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431023111344397 and 431023111344406.

It is not an unprimeable number, because it can be changed into a prime (431023111344743) 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, 1080713 + ... + 29380506.

It is an arithmetic number, because the mean of its divisors is an integer number (107755788988890).

Almost surely, 2^{431023111344443} is an apocalyptic number.

431023111344443 is a deficient number, since it is larger than the sum of its proper divisors (44611117).

431023111344443 is a wasteful number, since it uses less digits than its factorization.

431023111344443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44611116.

The product of its (nonzero) digits is 165888, while the sum is 38.

Adding to 431023111344443 its reverse (344443111320134), we get a palindrome (775466222664577).

The spelling of 431023111344443 in words is "four hundred thirty-one trillion, twenty-three billion, one hundred eleven million, three hundred forty-four thousand, four hundred forty-three".