423331044425431 has 16 divisors (see below), whose sum is σ = 447637009075200. Its totient is φ = 399227836088448.

The previous prime is 423331044425417. The next prime is 423331044425437. The reversal of 423331044425431 is 134524440133324.

It is a cyclic number.

It is not a de Polignac number, because 423331044425431 - 2²³ = 423331036036823 is a prime.

It is a super-2 number, since 2×423331044425431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423331044425437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67090575 + ... + 73128703.

It is an arithmetic number, because the mean of its divisors is an integer number (27977313067200).

Almost surely, 2^{423331044425431} is an apocalyptic number.

423331044425431 is a deficient number, since it is larger than the sum of its proper divisors (24305964649769).

423331044425431 is a wasteful number, since it uses less digits than its factorization.

423331044425431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054918.

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 423331044425431 its reverse (134524440133324), we get a palindrome (557855484558755).

The spelling of 423331044425431 in words is "four hundred twenty-three trillion, three hundred thirty-one billion, forty-four million, four hundred twenty-five thousand, four hundred thirty-one".