342100321 has 4 divisors (see below), whose sum is σ = 356974272. Its totient is φ = 327226372.

The previous prime is 342100289. The next prime is 342100337. The reversal of 342100321 is 123001243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 342100321 - 2⁵ = 342100289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342100295 and 342100304.

It is not an unprimeable number, because it can be changed into a prime (342100621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7436941 + ... + 7436986.

It is an arithmetic number, because the mean of its divisors is an integer number (89243568).

Almost surely, 2^342100321 is an apocalyptic number.

It is an amenable number.

342100321 is a deficient number, since it is larger than the sum of its proper divisors (14873951).

342100321 is a wasteful number, since it uses less digits than its factorization.

342100321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14873950.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 342100321 is about 18495.9541792253. The cubic root of 342100321 is about 699.3874375790.

Adding to 342100321 its reverse (123001243), we get a palindrome (465101564).

The spelling of 342100321 in words is "three hundred forty-two million, one hundred thousand, three hundred twenty-one".