202120321342 has 32 divisors (see below), whose sum is σ = 306091441152. Its totient is φ = 100095899904.

The previous prime is 202120321307. The next prime is 202120321367. The reversal of 202120321342 is 243123021202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86117413 + ... + 86119759.

It is an arithmetic number, because the mean of its divisors is an integer number (9565357536).

Almost surely, 2^202120321342 is an apocalyptic number.

202120321342 is a deficient number, since it is larger than the sum of its proper divisors (103971119810).

202120321342 is a wasteful number, since it uses less digits than its factorization.

202120321342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 202120321342 its reverse (243123021202), we get a palindrome (445243342544).

The spelling of 202120321342 in words is "two hundred two billion, one hundred twenty million, three hundred twenty-one thousand, three hundred forty-two".