121113202321 has 4 divisors (see below), whose sum is σ = 122819022144. Its totient is φ = 119407382500.

The previous prime is 121113202297. The next prime is 121113202337. The reversal of 121113202321 is 123202311121.

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 121113202321 - 2¹⁵ = 121113169553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121113202381) 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, 852909805 + ... + 852909946.

It is an arithmetic number, because the mean of its divisors is an integer number (30704755536).

Almost surely, 2^121113202321 is an apocalyptic number.

It is an amenable number.

121113202321 is a deficient number, since it is larger than the sum of its proper divisors (1705819823).

121113202321 is an equidigital number, since it uses as much as digits as its factorization.

121113202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705819822.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121113202321 its reverse (123202311121), we get a palindrome (244315513442).

The spelling of 121113202321 in words is "one hundred twenty-one billion, one hundred thirteen million, two hundred two thousand, three hundred twenty-one".