121413423 has 8 divisors (see below), whose sum is σ = 165833136. Its totient is φ = 78968000.

The previous prime is 121413403. The next prime is 121413427. The reversal of 121413423 is 324314121.

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 121413423 - 2⁶ = 121413359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121413423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121413427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493428 + ... + 493673.

It is an arithmetic number, because the mean of its divisors is an integer number (20729142).

Almost surely, 2^121413423 is an apocalyptic number.

121413423 is a deficient number, since it is larger than the sum of its proper divisors (44419713).

121413423 is an equidigital number, since it uses as much as digits as its factorization.

121413423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987145.

The product of its digits is 576, while the sum is 21.

The square root of 121413423 is about 11018.7759302020. The cubic root of 121413423 is about 495.1714170119.

Adding to 121413423 its reverse (324314121), we get a palindrome (445727544).

The spelling of 121413423 in words is "one hundred twenty-one million, four hundred thirteen thousand, four hundred twenty-three".