342821203 has 4 divisors (see below), whose sum is σ = 342993688. Its totient is φ = 342648720.

The previous prime is 342821197. The next prime is 342821207. The reversal of 342821203 is 302128243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 342821203 - 2¹³ = 342813011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342821207) 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, 83226 + ... + 87247.

It is an arithmetic number, because the mean of its divisors is an integer number (85748422).

Almost surely, 2^342821203 is an apocalyptic number.

342821203 is a deficient number, since it is larger than the sum of its proper divisors (172485).

342821203 is a wasteful number, since it uses less digits than its factorization.

342821203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172484.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 342821203 is about 18515.4314829550. The cubic root of 342821203 is about 699.8783482473.

Adding to 342821203 its reverse (302128243), we get a palindrome (644949446).

The spelling of 342821203 in words is "three hundred forty-two million, eight hundred twenty-one thousand, two hundred three".