22431144010243 has 4 divisors (see below), whose sum is σ = 23154729300928. Its totient is φ = 21707558719560.

The previous prime is 22431144010237. The next prime is 22431144010267. The reversal of 22431144010243 is 34201044113422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22431144010243 - 2¹⁷ = 22431143879171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 723585290653 = 22431144010243 / (2 + 2 + 4 + 3 + 1 + 1 + 4 + 4 + 0 + 1 + 0 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22431144010273) 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, 361792645296 + ... + 361792645357.

It is an arithmetic number, because the mean of its divisors is an integer number (5788682325232).

Almost surely, 2^{22431144010243} is an apocalyptic number.

22431144010243 is a deficient number, since it is larger than the sum of its proper divisors (723585290685).

22431144010243 is an equidigital number, since it uses as much as digits as its factorization.

22431144010243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723585290684.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 22431144010243 its reverse (34201044113422), we get a palindrome (56632188123665).

The spelling of 22431144010243 in words is "twenty-two trillion, four hundred thirty-one billion, one hundred forty-four million, ten thousand, two hundred forty-three".