342121323 has 12 divisors (see below), whose sum is σ = 472437368. Its totient is φ = 220214400.

The previous prime is 342121321. The next prime is 342121327. The reversal of 342121323 is 323121243.

It is not a de Polignac number, because 342121323 - 2¹ = 342121321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342121323.

It is not an unprimeable number, because it can be changed into a prime (342121321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65278 + ... + 70323.

Almost surely, 2^342121323 is an apocalyptic number.

342121323 is a deficient number, since it is larger than the sum of its proper divisors (130316045).

342121323 is a wasteful number, since it uses less digits than its factorization.

342121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135662 (or 135633 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 342121323 is about 18496.5219162955. The cubic root of 342121323 is about 699.4017493988.

Adding to 342121323 its reverse (323121243), we get a palindrome (665242566).

The spelling of 342121323 in words is "three hundred forty-two million, one hundred twenty-one thousand, three hundred twenty-three".