203212142340 has 48 divisors (see below), whose sum is σ = 569170754880. Its totient is φ = 54173070720.

The previous prime is 203212142323. The next prime is 203212142377. The reversal of 203212142340 is 43241212302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 203212142340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330706 + ... + 718185.

It is an arithmetic number, because the mean of its divisors is an integer number (11857724060).

Almost surely, 2^203212142340 is an apocalyptic number.

203212142340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203212142340 is an abundant number, since it is smaller than the sum of its proper divisors (365958612540).

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

203212142340 is a wasteful number, since it uses less digits than its factorization.

203212142340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052132 (or 1052130 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203212142340 its reverse (43241212302), we get a palindrome (246453354642).

The spelling of 203212142340 in words is "two hundred three billion, two hundred twelve million, one hundred forty-two thousand, three hundred forty".