121044413 has 4 divisors (see below), whose sum is σ = 138336480. Its totient is φ = 103752348.

The previous prime is 121044409. The next prime is 121044431. The reversal of 121044413 is 314440121.

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 not a de Polignac number, because 121044413 - 2² = 121044409 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 (121044433) 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, 8646023 + ... + 8646036.

It is an arithmetic number, because the mean of its divisors is an integer number (34584120).

Almost surely, 2^121044413 is an apocalyptic number.

It is an amenable number.

121044413 is a deficient number, since it is larger than the sum of its proper divisors (17292067).

121044413 is an equidigital number, since it uses as much as digits as its factorization.

121044413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17292066.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 121044413 is about 11002.0185875138. The cubic root of 121044413 is about 494.6692522341.

Adding to 121044413 its reverse (314440121), we get a palindrome (435484534).

The spelling of 121044413 in words is "one hundred twenty-one million, forty-four thousand, four hundred thirteen".