121533323 has 4 divisors (see below), whose sum is σ = 128682360. Its totient is φ = 114384288.

The previous prime is 121533319. The next prime is 121533341. The reversal of 121533323 is 323335121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121533323 - 2² = 121533319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121536323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3574493 + ... + 3574526.

It is an arithmetic number, because the mean of its divisors is an integer number (32170590).

Almost surely, 2^121533323 is an apocalyptic number.

121533323 is a deficient number, since it is larger than the sum of its proper divisors (7149037).

121533323 is an equidigital number, since it uses as much as digits as its factorization.

121533323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149036.

The product of its digits is 1620, while the sum is 23.

The square root of 121533323 is about 11024.2153008729. The cubic root of 121533323 is about 495.3343630808.

Adding to 121533323 its reverse (323335121), we get a palindrome (444868444).

The spelling of 121533323 in words is "one hundred twenty-one million, five hundred thirty-three thousand, three hundred twenty-three".