121522423 has 8 divisors (see below), whose sum is σ = 139547520. Its totient is φ = 104660280.

The previous prime is 121522421. The next prime is 121522439. The reversal of 121522423 is 324225121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121522423 - 2¹ = 121522421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121522394 and 121522403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121522421) 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 7 ways as a sum of consecutive naturals, for example, 290515 + ... + 290932.

It is an arithmetic number, because the mean of its divisors is an integer number (17443440).

Almost surely, 2^121522423 is an apocalyptic number.

121522423 is a deficient number, since it is larger than the sum of its proper divisors (18025097).

121522423 is a wasteful number, since it uses less digits than its factorization.

121522423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581477.

The product of its digits is 960, while the sum is 22.

The square root of 121522423 is about 11023.7209235358. The cubic root of 121522423 is about 495.3195542315.

Adding to 121522423 its reverse (324225121), we get a palindrome (445747544).

The spelling of 121522423 in words is "one hundred twenty-one million, five hundred twenty-two thousand, four hundred twenty-three".