210320342 has 4 divisors (see below), whose sum is σ = 315480516. Its totient is φ = 105160170.

The previous prime is 210320333. The next prime is 210320387. The reversal of 210320342 is 243023012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 210320342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52580084 + ... + 52580087.

It is an arithmetic number, because the mean of its divisors is an integer number (78870129).

Almost surely, 2^210320342 is an apocalyptic number.

210320342 is a deficient number, since it is larger than the sum of its proper divisors (105160174).

210320342 is a wasteful number, since it uses less digits than its factorization.

210320342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105160173.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 210320342 is about 14502.4253833626. The cubic root of 210320342 is about 594.6942778916.

Adding to 210320342 its reverse (243023012), we get a palindrome (453343354).

The spelling of 210320342 in words is "two hundred ten million, three hundred twenty thousand, three hundred forty-two".