20322044431 has 8 divisors (see below), whose sum is σ = 21998676560. Its totient is φ = 18661612032.

The previous prime is 20322044423. The next prime is 20322044459. The reversal of 20322044431 is 13444022302.

It is a happy number.

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 20322044431 - 2³ = 20322044423 is a prime.

It is a super-2 number, since 2×20322044431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20322044396 and 20322044405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322044401) 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, 4047321 + ... + 4052338.

It is an arithmetic number, because the mean of its divisors is an integer number (2749834570).

Almost surely, 2^20322044431 is an apocalyptic number.

20322044431 is a deficient number, since it is larger than the sum of its proper divisors (1676632129).

20322044431 is a wasteful number, since it uses less digits than its factorization.

20322044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099865.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20322044431 its reverse (13444022302), we get a palindrome (33766066733).

The spelling of 20322044431 in words is "twenty billion, three hundred twenty-two million, forty-four thousand, four hundred thirty-one".