203312233221011 has 4 divisors (see below), whose sum is σ = 212151895534992. Its totient is φ = 194472570907032.

The previous prime is 203312233221001. The next prime is 203312233221023. The reversal of 203312233221011 is 110122332213302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203312233221011 - 2⁴² = 198914186709907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203312233221001) 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 3 ways as a sum of consecutive naturals, for example, 4419831156956 + ... + 4419831157001.

It is an arithmetic number, because the mean of its divisors is an integer number (53037973883748).

Almost surely, 2^{203312233221011} is an apocalyptic number.

203312233221011 is a deficient number, since it is larger than the sum of its proper divisors (8839662313981).

203312233221011 is an equidigital number, since it uses as much as digits as its factorization.

203312233221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839662313980.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 203312233221011 its reverse (110122332213302), we get a palindrome (313434565434313).

The spelling of 203312233221011 in words is "two hundred three trillion, three hundred twelve billion, two hundred thirty-three million, two hundred twenty-one thousand, eleven".