23001223309 has 2 divisors, whose sum is σ = 23001223310. Its totient is φ = 23001223308.

The previous prime is 23001223303. The next prime is 23001223361. The reversal of 23001223309 is 90332210032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21867015625 + 1134207684 = 147875^2 + 33678^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001223309 - 2²⁹ = 22464352397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23001223303) 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, 11500611654 + 11500611655.

It is an arithmetic number, because the mean of its divisors is an integer number (11500611655).

Almost surely, 2^23001223309 is an apocalyptic number.

It is an amenable number.

23001223309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001223309 is an equidigital number, since it uses as much as digits as its factorization.

23001223309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The spelling of 23001223309 in words is "twenty-three billion, one million, two hundred twenty-three thousand, three hundred nine".