203312120011 has 48 divisors (see below), whose sum is σ = 287434556640. Its totient is φ = 141195640320.

The previous prime is 203312120003. The next prime is 203312120021. The reversal of 203312120011 is 110021213302.

203312120011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203312120011 - 2³ = 203312120003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203312120021) 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 47 ways as a sum of consecutive naturals, for example, 297066 + ... + 703471.

It is an arithmetic number, because the mean of its divisors is an integer number (5988219930).

Almost surely, 2^203312120011 is an apocalyptic number.

203312120011 is a deficient number, since it is larger than the sum of its proper divisors (84122436629).

203312120011 is a wasteful number, since it uses less digits than its factorization.

203312120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000604 (or 1000597 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203312120011 its reverse (110021213302), we get a palindrome (313333333313).

It can be divided in two parts, 203312 and 120011, that added together give a palindrome (323323).

The spelling of 203312120011 in words is "two hundred three billion, three hundred twelve million, one hundred twenty thousand, eleven".