121444043000321 has 16 divisors (see below), whose sum is σ = 135817554297600. Its totient is φ = 107914900117248.

The previous prime is 121444043000311. The next prime is 121444043000327. The reversal of 121444043000321 is 123000340444121.

It is a cyclic number.

It is not a de Polignac number, because 121444043000321 - 2³⁰ = 121442969258497 is a prime.

It is a super-2 number, since 2×121444043000321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121444043000327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641522681 + ... + 641711958.

It is an arithmetic number, because the mean of its divisors is an integer number (8488597143600).

Almost surely, 2^{121444043000321} is an apocalyptic number.

It is an amenable number.

121444043000321 is a deficient number, since it is larger than the sum of its proper divisors (14373511297279).

121444043000321 is a wasteful number, since it uses less digits than its factorization.

121444043000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283234968.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 121444043000321 its reverse (123000340444121), we get a palindrome (244444383444442).

The spelling of 121444043000321 in words is "one hundred twenty-one trillion, four hundred forty-four billion, forty-three million, three hundred twenty-one", and thus it is an aban number.