121134321 has 36 divisors (see below), whose sum is σ = 222051024. Its totient is φ = 62924400.

The previous prime is 121134289. The next prime is 121134341. The reversal of 121134321 is 123431121.

It is not a de Polignac number, because 121134321 - 2⁵ = 121134289 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121134294 and 121134303.

It is not an unprimeable number, because it can be changed into a prime (121134341) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7635 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (6168084).

Almost surely, 2^121134321 is an apocalyptic number.

121134321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121134321 is a deficient number, since it is larger than the sum of its proper divisors (100916703).

121134321 is a wasteful number, since it uses less digits than its factorization.

121134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25002 (or 24992 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 121134321 is about 11006.1038065248. The cubic root of 121134321 is about 494.7916968671.

Adding to 121134321 its reverse (123431121), we get a palindrome (244565442).

The spelling of 121134321 in words is "one hundred twenty-one million, one hundred thirty-four thousand, three hundred twenty-one".