23230440554143 has 2 divisors, whose sum is σ = 23230440554144. Its totient is φ = 23230440554142.

The previous prime is 23230440554071. The next prime is 23230440554177. The reversal of 23230440554143 is 34145504403232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23230440554143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23230440554096 and 23230440554105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23230440555143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615220277071 + 11615220277072.

It is an arithmetic number, because the mean of its divisors is an integer number (11615220277072).

Almost surely, 2^{23230440554143} is an apocalyptic number.

23230440554143 is a deficient number, since it is larger than the sum of its proper divisors (1).

23230440554143 is an equidigital number, since it uses as much as digits as its factorization.

23230440554143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 23230440554143 its reverse (34145504403232), we get a palindrome (57375944957375).

The spelling of 23230440554143 in words is "twenty-three trillion, two hundred thirty billion, four hundred forty million, five hundred fifty-four thousand, one hundred forty-three".