22404313431 has 6 divisors (see below), whose sum is σ = 32361786080. Its totient is φ = 14936208948.

The previous prime is 22404313427. The next prime is 22404313433. The reversal of 22404313431 is 13431340422.

22404313431 is a `hidden beast` number, since 224 + 0 + 4 + 3 + 1 + 3 + 431 = 666.

It is not a de Polignac number, because 22404313431 - 2² = 22404313427 is a prime.

It is a super-2 number, since 2×22404313431² (a number of 22 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 = 22404313395 and 22404313404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404313433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1244684071 + ... + 1244684088.

Almost surely, 2^22404313431 is an apocalyptic number.

22404313431 is a deficient number, since it is larger than the sum of its proper divisors (9957472649).

22404313431 is a wasteful number, since it uses less digits than its factorization.

22404313431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489368165 (or 2489368162 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 22404313431 its reverse (13431340422), we get a palindrome (35835653853).

The spelling of 22404313431 in words is "twenty-two billion, four hundred four million, three hundred thirteen thousand, four hundred thirty-one".