23309127409 has 2 divisors, whose sum is σ = 23309127410. Its totient is φ = 23309127408.

The previous prime is 23309127403. The next prime is 23309127419. The reversal of 23309127409 is 90472190332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22875655009 + 433472400 = 151247^2 + 20820^2 .

It is a cyclic number.

It is not a de Polignac number, because 23309127409 - 2²³ = 23300738801 is a prime.

It is not a weakly prime, because it can be changed into another prime (23309127403) 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, 11654563704 + 11654563705.

It is an arithmetic number, because the mean of its divisors is an integer number (11654563705).

Almost surely, 2^23309127409 is an apocalyptic number.

It is an amenable number.

23309127409 is a deficient number, since it is larger than the sum of its proper divisors (1).

23309127409 is an equidigital number, since it uses as much as digits as its factorization.

23309127409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 23309127409 in words is "twenty-three billion, three hundred nine million, one hundred twenty-seven thousand, four hundred nine".