121113302321 has 4 divisors (see below), whose sum is σ = 132123602544. Its totient is φ = 110103002100.

The previous prime is 121113302267. The next prime is 121113302363. The reversal of 121113302321 is 123203311121.

It is a happy number.

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 121113302321 - 2⁶ = 121113302257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121113302293 and 121113302302.

It is not an unprimeable number, because it can be changed into a prime (121113302381) 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, 5505150095 + ... + 5505150116.

It is an arithmetic number, because the mean of its divisors is an integer number (33030900636).

Almost surely, 2^121113302321 is an apocalyptic number.

121113302321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121113302321 is a deficient number, since it is larger than the sum of its proper divisors (11010300223).

121113302321 is a wasteful number, since it uses less digits than its factorization.

121113302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010300222.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121113302321 its reverse (123203311121), we get a palindrome (244316613442).

The spelling of 121113302321 in words is "one hundred twenty-one billion, one hundred thirteen million, three hundred two thousand, three hundred twenty-one".