203212021323 has 8 divisors (see below), whose sum is σ = 277250509888. Its totient is φ = 132324106824.

The previous prime is 203212021319. The next prime is 203212021333. The reversal of 203212021323 is 323120212302.

It is a happy number.

203212021323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203212021323 - 2² = 203212021319 is a prime.

It is a super-2 number, since 2×203212021323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203212021323.

It is not an unprimeable number, because it can be changed into a prime (203212021303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787643365 + ... + 787643622.

It is an arithmetic number, because the mean of its divisors is an integer number (34656313736).

Almost surely, 2^203212021323 is an apocalyptic number.

203212021323 is a deficient number, since it is larger than the sum of its proper divisors (74038488565).

203212021323 is a wasteful number, since it uses less digits than its factorization.

203212021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575287033.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203212021323 its reverse (323120212302), we get a palindrome (526332233625).

The spelling of 203212021323 in words is "two hundred three billion, two hundred twelve million, twenty-one thousand, three hundred twenty-three".