202320012 has 24 divisors (see below), whose sum is σ = 487309312. Its totient is φ = 65264400.

The previous prime is 202319989. The next prime is 202320073. The reversal of 202320012 is 210023202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 202320012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271564 + ... + 272307.

Almost surely, 2^202320012 is an apocalyptic number.

It is an amenable number.

202320012 is an abundant number, since it is smaller than the sum of its proper divisors (284989300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202320012 is a wasteful number, since it uses less digits than its factorization.

202320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543909 (or 543907 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 202320012 is about 14223.9239311802. The cubic root of 202320012 is about 587.0561120851.

Adding to 202320012 its reverse (210023202), we get a palindrome (412343214).

The spelling of 202320012 in words is "two hundred two million, three hundred twenty thousand, twelve".