23521240625143 has 2 divisors, whose sum is σ = 23521240625144. Its totient is φ = 23521240625142.

The previous prime is 23521240625111. The next prime is 23521240625153. The reversal of 23521240625143 is 34152604212532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23521240625143 - 2⁵ = 23521240625111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23521240625096 and 23521240625105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23521240625153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11760620312571 + 11760620312572.

It is an arithmetic number, because the mean of its divisors is an integer number (11760620312572).

Almost surely, 2^{23521240625143} is an apocalyptic number.

23521240625143 is a deficient number, since it is larger than the sum of its proper divisors (1).

23521240625143 is an equidigital number, since it uses as much as digits as its factorization.

23521240625143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 23521240625143 its reverse (34152604212532), we get a palindrome (57673844837675).

The spelling of 23521240625143 in words is "twenty-three trillion, five hundred twenty-one billion, two hundred forty million, six hundred twenty-five thousand, one hundred forty-three".