23421212159 has 2 divisors, whose sum is σ = 23421212160. Its totient is φ = 23421212158.

The previous prime is 23421212141. The next prime is 23421212197. The reversal of 23421212159 is 95121212432.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23421212159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23421212959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710606079 + 11710606080.

It is an arithmetic number, because the mean of its divisors is an integer number (11710606080).

Almost surely, 2^23421212159 is an apocalyptic number.

23421212159 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421212159 is an equidigital number, since it uses as much as digits as its factorization.

23421212159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The spelling of 23421212159 in words is "twenty-three billion, four hundred twenty-one million, two hundred twelve thousand, one hundred fifty-nine".