23001109 has 2 divisors, whose sum is σ = 23001110. Its totient is φ = 23001108.

The previous prime is 23001107. The next prime is 23001137. The reversal of 23001109 is 90110032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18464209 + 4536900 = 4297^2 + 2130^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001109 - 2¹ = 23001107 is a prime.

Together with 23001107, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23001092 and 23001101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23001103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500554 + 11500555.

It is an arithmetic number, because the mean of its divisors is an integer number (11500555).

Almost surely, 2^23001109 is an apocalyptic number.

It is an amenable number.

23001109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001109 is an equidigital number, since it uses as much as digits as its factorization.

23001109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 23001109 is about 4795.9471431616. The cubic root of 23001109 is about 284.3912687066.

The spelling of 23001109 in words is "twenty-three million, one thousand, one hundred nine".