233203019989 has 2 divisors, whose sum is σ = 233203019990. Its totient is φ = 233203019988.

The previous prime is 233203019969. The next prime is 233203020007. The reversal of 233203019989 is 989910302332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117999120100 + 115203899889 = 343510^2 + 339417^2 .

It is a cyclic number.

It is not a de Polignac number, because 233203019989 - 2⁵ = 233203019957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233203019969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116601509994 + 116601509995.

It is an arithmetic number, because the mean of its divisors is an integer number (116601509995).

Almost surely, 2^233203019989 is an apocalyptic number.

It is an amenable number.

233203019989 is a deficient number, since it is larger than the sum of its proper divisors (1).

233203019989 is an equidigital number, since it uses as much as digits as its factorization.

233203019989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 233203019989 in words is "two hundred thirty-three billion, two hundred three million, nineteen thousand, nine hundred eighty-nine".