113112201989 has 2 divisors, whose sum is σ = 113112201990. Its totient is φ = 113112201988.

The previous prime is 113112201967. The next prime is 113112202001. The reversal of 113112201989 is 989102211311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65455128964 + 47657073025 = 255842^2 + 218305^2 .

It is an emirp because it is prime and its reverse (989102211311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113112201989 - 2³⁶ = 44392725253 is a prime.

It is a super-2 number, since 2×113112201989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113112201089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56556100994 + 56556100995.

It is an arithmetic number, because the mean of its divisors is an integer number (56556100995).

Almost surely, 2^113112201989 is an apocalyptic number.

It is an amenable number.

113112201989 is a deficient number, since it is larger than the sum of its proper divisors (1).

113112201989 is an equidigital number, since it uses as much as digits as its factorization.

113112201989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 38.

The spelling of 113112201989 in words is "one hundred thirteen billion, one hundred twelve million, two hundred one thousand, nine hundred eighty-nine".