121044443 has 4 divisors (see below), whose sum is σ = 130355568. Its totient is φ = 111733320.

The previous prime is 121044433. The next prime is 121044449. The reversal of 121044443 is 344440121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344440121 = 15263 ⋅22567.

It is a cyclic number.

It is not a de Polignac number, because 121044443 - 2²⁴ = 104267227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121044449) 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, 4655543 + ... + 4655568.

It is an arithmetic number, because the mean of its divisors is an integer number (32588892).

Almost surely, 2^121044443 is an apocalyptic number.

121044443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121044443 is a deficient number, since it is larger than the sum of its proper divisors (9311125).

121044443 is an equidigital number, since it uses as much as digits as its factorization.

121044443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311124.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 121044443 is about 11002.0199508999. The cubic root of 121044443 is about 494.6692931008.

Adding to 121044443 its reverse (344440121), we get a palindrome (465484564).

The spelling of 121044443 in words is "one hundred twenty-one million, forty-four thousand, four hundred forty-three".