23011000409 has 2 divisors, whose sum is σ = 23011000410. Its totient is φ = 23011000408.

The previous prime is 23011000319. The next prime is 23011000429. The reversal of 23011000409 is 90400011032.

It is an a-pointer prime, because the next prime (23011000429) can be obtained adding 23011000409 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13800375625 + 9210624784 = 117475^2 + 95972^2 .

It is a cyclic number.

It is not a de Polignac number, because 23011000409 - 2⁸ = 23011000153 is a prime.

It is a super-2 number, since 2×23011000409² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23011000429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505500204 + 11505500205.

It is an arithmetic number, because the mean of its divisors is an integer number (11505500205).

Almost surely, 2^23011000409 is an apocalyptic number.

It is an amenable number.

23011000409 is a deficient number, since it is larger than the sum of its proper divisors (1).

23011000409 is an equidigital number, since it uses as much as digits as its factorization.

23011000409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 23011000409 in words is "twenty-three billion, eleven million, four hundred nine", and thus it is an aban number.