23001220019 has 2 divisors, whose sum is σ = 23001220020. Its totient is φ = 23001220018.

The previous prime is 23001219959. The next prime is 23001220069. The reversal of 23001220019 is 91002210032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23001220019 - 2⁸ = 23001219763 is a prime.

It is a super-2 number, since 2×23001220019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23001220069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500610009 + 11500610010.

It is an arithmetic number, because the mean of its divisors is an integer number (11500610010).

Almost surely, 2^23001220019 is an apocalyptic number.

23001220019 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001220019 is an equidigital number, since it uses as much as digits as its factorization.

23001220019 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 23001220019 in words is "twenty-three billion, one million, two hundred twenty thousand, nineteen".