23404140143 has 2 divisors, whose sum is σ = 23404140144. Its totient is φ = 23404140142.

The previous prime is 23404140139. The next prime is 23404140157. The reversal of 23404140143 is 34104140432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23404140143 - 2² = 23404140139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23404140103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11702070071 + 11702070072.

It is an arithmetic number, because the mean of its divisors is an integer number (11702070072).

Almost surely, 2^23404140143 is an apocalyptic number.

23404140143 is a deficient number, since it is larger than the sum of its proper divisors (1).

23404140143 is an equidigital number, since it uses as much as digits as its factorization.

23404140143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 23404140143 its reverse (34104140432), we get a palindrome (57508280575).

The spelling of 23404140143 in words is "twenty-three billion, four hundred four million, one hundred forty thousand, one hundred forty-three".