113212122989 has 4 divisors (see below), whose sum is σ = 129385283424. Its totient is φ = 97038962556.

The previous prime is 113212122983. The next prime is 113212122997. The reversal of 113212122989 is 989221212311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113212122989 - 2²⁰ = 113211074413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113212122983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8086580207 + ... + 8086580220.

It is an arithmetic number, because the mean of its divisors is an integer number (32346320856).

Almost surely, 2^113212122989 is an apocalyptic number.

It is an amenable number.

113212122989 is a deficient number, since it is larger than the sum of its proper divisors (16173160435).

113212122989 is an equidigital number, since it uses as much as digits as its factorization.

113212122989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16173160434.

The product of its digits is 31104, while the sum is 41.

The spelling of 113212122989 in words is "one hundred thirteen billion, two hundred twelve million, one hundred twenty-two thousand, nine hundred eighty-nine".