23321227889 has 2 divisors, whose sum is σ = 23321227890. Its totient is φ = 23321227888.

The previous prime is 23321227879. The next prime is 23321227973. The reversal of 23321227889 is 98872212332.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12059773489 + 11261454400 = 109817^2 + 106120^2 .

It is a cyclic number.

It is not a de Polignac number, because 23321227889 - 2¹⁶ = 23321162353 is a prime.

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 (23321227829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660613944 + 11660613945.

It is an arithmetic number, because the mean of its divisors is an integer number (11660613945).

Almost surely, 2^23321227889 is an apocalyptic number.

It is an amenable number.

23321227889 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321227889 is an equidigital number, since it uses as much as digits as its factorization.

23321227889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 47.

The spelling of 23321227889 in words is "twenty-three billion, three hundred twenty-one million, two hundred twenty-seven thousand, eight hundred eighty-nine".