23013215143 has 2 divisors, whose sum is σ = 23013215144. Its totient is φ = 23013215142.

The previous prime is 23013215101. The next prime is 23013215189. The reversal of 23013215143 is 34151231032.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23013215143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23013216143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506607571 + 11506607572.

It is an arithmetic number, because the mean of its divisors is an integer number (11506607572).

Almost surely, 2^23013215143 is an apocalyptic number.

23013215143 is a deficient number, since it is larger than the sum of its proper divisors (1).

23013215143 is an equidigital number, since it uses as much as digits as its factorization.

23013215143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 23013215143 its reverse (34151231032), we get a palindrome (57164446175).

The spelling of 23013215143 in words is "twenty-three billion, thirteen million, two hundred fifteen thousand, one hundred forty-three".