121321103323 has 16 divisors (see below), whose sum is σ = 138867606720. Its totient is φ = 103828464000.

The previous prime is 121321103297. The next prime is 121321103339. The reversal of 121321103323 is 323301123121.

It is a cyclic number.

It is not a de Polignac number, because 121321103323 - 2³³ = 112731168731 is a prime.

It is a super-2 number, since 2×121321103323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121321103294 and 121321103303.

It is not an unprimeable number, because it can be changed into a prime (121321103353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14753353 + ... + 14761573.

It is an arithmetic number, because the mean of its divisors is an integer number (8679225420).

Almost surely, 2^121321103323 is an apocalyptic number.

121321103323 is a deficient number, since it is larger than the sum of its proper divisors (17546503397).

121321103323 is a wasteful number, since it uses less digits than its factorization.

121321103323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11238.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121321103323 its reverse (323301123121), we get a palindrome (444622226444).

The spelling of 121321103323 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred three thousand, three hundred twenty-three".