321243486121 has 4 divisors (see below), whose sum is σ = 328714264912. Its totient is φ = 313772707332.

The previous prime is 321243486041. The next prime is 321243486127. The reversal of 321243486121 is 121684342123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121684342123 = 181 ⋅672289183.

It is a cyclic number.

It is not a de Polignac number, because 321243486121 - 2⁷ = 321243485993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321243486127) 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, 3735389331 + ... + 3735389416.

It is an arithmetic number, because the mean of its divisors is an integer number (82178566228).

Almost surely, 2^321243486121 is an apocalyptic number.

It is an amenable number.

321243486121 is a deficient number, since it is larger than the sum of its proper divisors (7470778791).

321243486121 is an equidigital number, since it uses as much as digits as its factorization.

321243486121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470778790.

The product of its digits is 55296, while the sum is 37.

The spelling of 321243486121 in words is "three hundred twenty-one billion, two hundred forty-three million, four hundred eighty-six thousand, one hundred twenty-one".