121402343 has 8 divisors (see below), whose sum is σ = 127903920. Its totient is φ = 114912000.

The previous prime is 121402331. The next prime is 121402367. The reversal of 121402343 is 343204121.

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

It is not a de Polignac number, because 121402343 - 2⁶ = 121402279 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121402543) 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, 28343 + ... + 32343.

It is an arithmetic number, because the mean of its divisors is an integer number (15987990).

Almost surely, 2^121402343 is an apocalyptic number.

121402343 is a deficient number, since it is larger than the sum of its proper divisors (6501577).

121402343 is a wasteful number, since it uses less digits than its factorization.

121402343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 121402343 is about 11018.2731405606. The cubic root of 121402343 is about 495.1563536961.

Adding to 121402343 its reverse (343204121), we get a palindrome (464606464).

The spelling of 121402343 in words is "one hundred twenty-one million, four hundred two thousand, three hundred forty-three".