115120200989 has 2 divisors, whose sum is σ = 115120200990. Its totient is φ = 115120200988.

The previous prime is 115120200983. The next prime is 115120200991. The reversal of 115120200989 is 989002021511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110677978489 + 4442222500 = 332683^2 + 66650^2 .

It is a cyclic number.

It is not a de Polignac number, because 115120200989 - 2²⁸ = 114851765533 is a prime.

Together with 115120200991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115120200983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57560100494 + 57560100495.

It is an arithmetic number, because the mean of its divisors is an integer number (57560100495).

Almost surely, 2^115120200989 is an apocalyptic number.

It is an amenable number.

115120200989 is a deficient number, since it is larger than the sum of its proper divisors (1).

115120200989 is an equidigital number, since it uses as much as digits as its factorization.

115120200989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 38.

The spelling of 115120200989 in words is "one hundred fifteen billion, one hundred twenty million, two hundred thousand, nine hundred eighty-nine".