22312316405 has 8 divisors (see below), whose sum is σ = 26945320632. Its totient is φ = 17736159168.

The previous prime is 22312316381. The next prime is 22312316431. The reversal of 22312316405 is 50461321322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5601324964 + 16710991441 = 74842^2 + 129271^2 .

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 22312316405 - 2⁸ = 22312316149 is a prime.

It is a super-3 number, since 3×22312316405³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14210882 + ... + 14212451.

It is an arithmetic number, because the mean of its divisors is an integer number (3368165079).

Almost surely, 2^22312316405 is an apocalyptic number.

It is an amenable number.

22312316405 is a deficient number, since it is larger than the sum of its proper divisors (4633004227).

22312316405 is a wasteful number, since it uses less digits than its factorization.

22312316405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28423495.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 22312316405 its reverse (50461321322), we get a palindrome (72773637727).

The spelling of 22312316405 in words is "twenty-two billion, three hundred twelve million, three hundred sixteen thousand, four hundred five".