121543323 has 32 divisors (see below), whose sum is σ = 187488000. Its totient is φ = 69264000.

The previous prime is 121543313. The next prime is 121543337. The reversal of 121543323 is 323345121.

It is not a de Polignac number, because 121543323 - 2⁴ = 121543307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121543293 and 121543302.

It is not an unprimeable number, because it can be changed into a prime (121543313) 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 31 ways as a sum of consecutive naturals, for example, 92773 + ... + 94073.

It is an arithmetic number, because the mean of its divisors is an integer number (5859000).

Almost surely, 2^121543323 is an apocalyptic number.

121543323 is a deficient number, since it is larger than the sum of its proper divisors (65944677).

121543323 is a wasteful number, since it uses less digits than its factorization.

121543323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its digits is 2160, while the sum is 24.

The square root of 121543323 is about 11024.6688385638. The cubic root of 121543323 is about 495.3479484022.

Adding to 121543323 its reverse (323345121), we get a palindrome (444888444).

The spelling of 121543323 in words is "one hundred twenty-one million, five hundred forty-three thousand, three hundred twenty-three".