22431002043 has 4 divisors (see below), whose sum is σ = 29908002728. Its totient is φ = 14954001360.

The previous prime is 22431002023. The next prime is 22431002093. The reversal of 22431002043 is 34020013422.

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

It is not a de Polignac number, because 22431002043 - 2⁹ = 22431001531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22431002023) 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, 3738500338 + ... + 3738500343.

It is an arithmetic number, because the mean of its divisors is an integer number (7477000682).

Almost surely, 2^22431002043 is an apocalyptic number.

22431002043 is a deficient number, since it is larger than the sum of its proper divisors (7477000685).

22431002043 is an equidigital number, since it uses as much as digits as its factorization.

22431002043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7477000684.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22431002043 its reverse (34020013422), we get a palindrome (56451015465).

The spelling of 22431002043 in words is "twenty-two billion, four hundred thirty-one million, two thousand, forty-three".