23981070089 has 2 divisors, whose sum is σ = 23981070090. Its totient is φ = 23981070088.

The previous prime is 23981070011. The next prime is 23981070097. The reversal of 23981070089 is 98007018932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23564706064 + 416364025 = 153508^2 + 20405^2 .

It is a cyclic number.

It is not a de Polignac number, because 23981070089 - 2¹² = 23981065993 is a prime.

It is a super-2 number, since 2×23981070089² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23981070389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11990535044 + 11990535045.

It is an arithmetic number, because the mean of its divisors is an integer number (11990535045).

Almost surely, 2^23981070089 is an apocalyptic number.

It is an amenable number.

23981070089 is a deficient number, since it is larger than the sum of its proper divisors (1).

23981070089 is an equidigital number, since it uses as much as digits as its factorization.

23981070089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 23981070089 in words is "twenty-three billion, nine hundred eighty-one million, seventy thousand, eighty-nine".