13123110122989 has 4 divisors (see below), whose sum is σ = 13123138462560. Its totient is φ = 13123081783420.

The previous prime is 13123110122963. The next prime is 13123110123037. The reversal of 13123110122989 is 98922101132131.

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 13123110122989 - 2⁵ = 13123110122957 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 (13120110122989) 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, 13463449 + ... + 14405230.

It is an arithmetic number, because the mean of its divisors is an integer number (3280784615640).

Almost surely, 2^{13123110122989} is an apocalyptic number.

It is an amenable number.

13123110122989 is a deficient number, since it is larger than the sum of its proper divisors (28339571).

13123110122989 is an equidigital number, since it uses as much as digits as its factorization.

13123110122989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28339570.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 13123110122989 in words is "thirteen trillion, one hundred twenty-three billion, one hundred ten million, one hundred twenty-two thousand, nine hundred eighty-nine".