23203213289 has 2 divisors, whose sum is σ = 23203213290. Its totient is φ = 23203213288.

The previous prime is 23203213277. The next prime is 23203213391. The reversal of 23203213289 is 98231230232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19101451264 + 4101762025 = 138208^2 + 64045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23203213289 is a prime.

It is not a weakly prime, because it can be changed into another prime (23203213889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601606644 + 11601606645.

It is an arithmetic number, because the mean of its divisors is an integer number (11601606645).

Almost surely, 2^23203213289 is an apocalyptic number.

It is an amenable number.

23203213289 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203213289 is an equidigital number, since it uses as much as digits as its factorization.

23203213289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 23203213289 in words is "twenty-three billion, two hundred three million, two hundred thirteen thousand, two hundred eighty-nine".