23430404189 has 2 divisors, whose sum is σ = 23430404190. Its totient is φ = 23430404188.

The previous prime is 23430404131. The next prime is 23430404209. The reversal of 23430404189 is 98140403432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23412060100 + 18344089 = 153010^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 23430404189 - 2⁸ = 23430403933 is a prime.

It is a super-4 number, since 4×23430404189⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23430404119) 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, 11715202094 + 11715202095.

It is an arithmetic number, because the mean of its divisors is an integer number (11715202095).

Almost surely, 2^23430404189 is an apocalyptic number.

It is an amenable number.

23430404189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23430404189 is an equidigital number, since it uses as much as digits as its factorization.

23430404189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 23430404189 in words is "twenty-three billion, four hundred thirty million, four hundred four thousand, one hundred eighty-nine".