23103123299909 has 2 divisors, whose sum is σ = 23103123299910. Its totient is φ = 23103123299908.

The previous prime is 23103123299903. The next prime is 23103123299947. The reversal of 23103123299909 is 90999232130132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20535126664900 + 2567996635009 = 4531570^2 + 1602497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23103123299909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23103123299903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551561649954 + 11551561649955.

It is an arithmetic number, because the mean of its divisors is an integer number (11551561649955).

Almost surely, 2^{23103123299909} is an apocalyptic number.

It is an amenable number.

23103123299909 is a deficient number, since it is larger than the sum of its proper divisors (1).

23103123299909 is an equidigital number, since it uses as much as digits as its factorization.

23103123299909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417176, while the sum is 53.

The spelling of 23103123299909 in words is "twenty-three trillion, one hundred three billion, one hundred twenty-three million, two hundred ninety-nine thousand, nine hundred nine".