1044123121 has 8 divisors (see below), whose sum is σ = 1078719488. Its totient is φ = 1009584000.

The previous prime is 1044123107. The next prime is 1044123133. The reversal of 1044123121 is 1213214401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1044123121 - 2⁷ = 1044122993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044123181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24481 + ... + 51841.

It is an arithmetic number, because the mean of its divisors is an integer number (134839936).

Almost surely, 2^1044123121 is an apocalyptic number.

It is an amenable number.

1044123121 is a deficient number, since it is larger than the sum of its proper divisors (34596367).

1044123121 is a wasteful number, since it uses less digits than its factorization.

1044123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28623.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1044123121 is about 32312.8940362822. The cubic root of 1044123121 is about 1014.4965417946.

Adding to 1044123121 its reverse (1213214401), we get a palindrome (2257337522).

The spelling of 1044123121 in words is "one billion, forty-four million, one hundred twenty-three thousand, one hundred twenty-one".