320142044431 has 8 divisors (see below), whose sum is σ = 349257792384. Its totient is φ = 291028284120.

The previous prime is 320142044399. The next prime is 320142044489. The reversal of 320142044431 is 134440241023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320142044431 - 2⁵ = 320142044399 is a prime.

It is a super-2 number, since 2×320142044431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320142044431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320142042431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149571 + ... + 814036.

It is an arithmetic number, because the mean of its divisors is an integer number (43657224048).

Almost surely, 2^320142044431 is an apocalyptic number.

320142044431 is a deficient number, since it is larger than the sum of its proper divisors (29115747953).

320142044431 is a wasteful number, since it uses less digits than its factorization.

320142044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993821.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 320142044431 its reverse (134440241023), we get a palindrome (454582285454).

The spelling of 320142044431 in words is "three hundred twenty billion, one hundred forty-two million, forty-four thousand, four hundred thirty-one".