121123433199 has 4 divisors (see below), whose sum is σ = 161497910936. Its totient is φ = 80748955464.

The previous prime is 121123433191. The next prime is 121123433209. The reversal of 121123433199 is 991334321121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121123433199 - 2³ = 121123433191 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 (121123433191) 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, 20187238864 + ... + 20187238869.

It is an arithmetic number, because the mean of its divisors is an integer number (40374477734).

Almost surely, 2^121123433199 is an apocalyptic number.

121123433199 is a deficient number, since it is larger than the sum of its proper divisors (40374477737).

121123433199 is an equidigital number, since it uses as much as digits as its factorization.

121123433199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40374477736.

The product of its digits is 34992, while the sum is 39.

The spelling of 121123433199 in words is "one hundred twenty-one billion, one hundred twenty-three million, four hundred thirty-three thousand, one hundred ninety-nine".