22431444413 has 4 divisors (see below), whose sum is σ = 25635936480. Its totient is φ = 19226952348.

The previous prime is 22431444391. The next prime is 22431444419. The reversal of 22431444413 is 31444413422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22431444413 - 2¹⁰ = 22431443389 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22431444413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431444419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602246023 + ... + 1602246036.

It is an arithmetic number, because the mean of its divisors is an integer number (6408984120).

Almost surely, 2^22431444413 is an apocalyptic number.

It is an amenable number.

22431444413 is a deficient number, since it is larger than the sum of its proper divisors (3204492067).

22431444413 is an equidigital number, since it uses as much as digits as its factorization.

22431444413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204492066.

The product of its digits is 36864, while the sum is 32.

Adding to 22431444413 its reverse (31444413422), we get a palindrome (53875857835).

The spelling of 22431444413 in words is "twenty-two billion, four hundred thirty-one million, four hundred forty-four thousand, four hundred thirteen".