121325344999 has 4 divisors (see below), whose sum is σ = 121327607520. Its totient is φ = 121323082480.

The previous prime is 121325344969. The next prime is 121325345021. The reversal of 121325344999 is 999443523121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999443523121 = 10337 ⋅96686033.

It is a cyclic number.

It is not a de Polignac number, because 121325344999 - 2⁷ = 121325344871 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 (121325344909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048822 + ... + 1158739.

It is an arithmetic number, because the mean of its divisors is an integer number (30331901880).

Almost surely, 2^121325344999 is an apocalyptic number.

121325344999 is a deficient number, since it is larger than the sum of its proper divisors (2262521).

121325344999 is an equidigital number, since it uses as much as digits as its factorization.

121325344999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262520.

The product of its digits is 2099520, while the sum is 52.

The spelling of 121325344999 in words is "one hundred twenty-one billion, three hundred twenty-five million, three hundred forty-four thousand, nine hundred ninety-nine".