121324523 has 2 divisors, whose sum is σ = 121324524. Its totient is φ = 121324522.

The previous prime is 121324513. The next prime is 121324559. The reversal of 121324523 is 325423121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121324523 - 2¹⁴ = 121308139 is a prime.

It is not a weakly prime, because it can be changed into another prime (121324513) 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 as a sum of consecutive naturals, namely, 60662261 + 60662262.

It is an arithmetic number, because the mean of its divisors is an integer number (60662262).

Almost surely, 2^121324523 is an apocalyptic number.

121324523 is a deficient number, since it is larger than the sum of its proper divisors (1).

121324523 is an equidigital number, since it uses as much as digits as its factorization.

121324523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 121324523 is about 11014.7411680892. The cubic root of 121324523 is about 495.0505311813.

Adding to 121324523 its reverse (325423121), we get a palindrome (446747644).

The spelling of 121324523 in words is "one hundred twenty-one million, three hundred twenty-four thousand, five hundred twenty-three".