203211223023 has 16 divisors (see below), whose sum is σ = 273461027840. Its totient is φ = 134218029024.

The previous prime is 203211222989. The next prime is 203211223049. The reversal of 203211223023 is 320322112302.

It is a happy number.

It is not a de Polignac number, because 203211223023 - 2²² = 203207028719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203211223073) by changing a digit.

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, 4168890 + ... + 4217352.

It is an arithmetic number, because the mean of its divisors is an integer number (17091314240).

Almost surely, 2^203211223023 is an apocalyptic number.

203211223023 is a deficient number, since it is larger than the sum of its proper divisors (70249804817).

203211223023 is a wasteful number, since it uses less digits than its factorization.

203211223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61398.

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

Adding to 203211223023 its reverse (320322112302), we get a palindrome (523533335325).

The spelling of 203211223023 in words is "two hundred three billion, two hundred eleven million, two hundred twenty-three thousand, twenty-three".