11200120989 has 4 divisors (see below), whose sum is σ = 14933494656. Its totient is φ = 7466747324.

The previous prime is 11200120979. The next prime is 11200120991. The reversal of 11200120989 is 98902100211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98902100211 = 3 ⋅32967366737.

It is a cyclic number.

It is not a de Polignac number, because 11200120989 - 2¹³ = 11200112797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200120979) 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, 1866686829 + ... + 1866686834.

It is an arithmetic number, because the mean of its divisors is an integer number (3733373664).

Almost surely, 2^11200120989 is an apocalyptic number.

It is an amenable number.

11200120989 is a deficient number, since it is larger than the sum of its proper divisors (3733373667).

11200120989 is an equidigital number, since it uses as much as digits as its factorization.

11200120989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733373666.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 11200120989 in words is "eleven billion, two hundred million, one hundred twenty thousand, nine hundred eighty-nine".