121044047 has 4 divisors (see below), whose sum is σ = 121490976. Its totient is φ = 120597120.

The previous prime is 121044031. The next prime is 121044059. The reversal of 121044047 is 740440121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121044047 - 2⁴ = 121044031 is a prime.

It is a super-2 number, since 2×121044047² = 29303322628276418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121044647) 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, 223058 + ... + 223599.

It is an arithmetic number, because the mean of its divisors is an integer number (30372744).

Almost surely, 2^121044047 is an apocalyptic number.

121044047 is a deficient number, since it is larger than the sum of its proper divisors (446929).

121044047 is an equidigital number, since it uses as much as digits as its factorization.

121044047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446928.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 121044047 is about 11002.0019541900. The cubic root of 121044047 is about 494.6687536592.

Adding to 121044047 its reverse (740440121), we get a palindrome (861484168).

The spelling of 121044047 in words is "one hundred twenty-one million, forty-four thousand, forty-seven".