23201121239 has 2 divisors, whose sum is σ = 23201121240. Its totient is φ = 23201121238.

The previous prime is 23201121211. The next prime is 23201121253. The reversal of 23201121239 is 93212110232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23201121239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23201121259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600560619 + 11600560620.

It is an arithmetic number, because the mean of its divisors is an integer number (11600560620).

Almost surely, 2^23201121239 is an apocalyptic number.

23201121239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23201121239 is an equidigital number, since it uses as much as digits as its factorization.

23201121239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 23201121239 in words is "twenty-three billion, two hundred one million, one hundred twenty-one thousand, two hundred thirty-nine".