121300120321321 has 4 divisors (see below), whose sum is σ = 122761567554192. Its totient is φ = 119838673088452.

The previous prime is 121300120321313. The next prime is 121300120321339. The reversal of 121300120321321 is 123123021003121.

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 a cyclic number.

It is not a de Polignac number, because 121300120321321 - 2³ = 121300120321313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121300120321292 and 121300120321301.

It is not an unprimeable number, because it can be changed into a prime (121300120321381) 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, 730723616311 + ... + 730723616476.

It is an arithmetic number, because the mean of its divisors is an integer number (30690391888548).

Almost surely, 2^{121300120321321} is an apocalyptic number.

It is an amenable number.

121300120321321 is a deficient number, since it is larger than the sum of its proper divisors (1461447232871).

121300120321321 is an equidigital number, since it uses as much as digits as its factorization.

121300120321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461447232870.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121300120321321 its reverse (123123021003121), we get a palindrome (244423141324442).

The spelling of 121300120321321 in words is "one hundred twenty-one trillion, three hundred billion, one hundred twenty million, three hundred twenty-one thousand, three hundred twenty-one".