221313311203 has 8 divisors (see below), whose sum is σ = 223707278016. Its totient is φ = 218923320000.

The previous prime is 221313311161. The next prime is 221313311231. The reversal of 221313311203 is 302113313122.

221313311203 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221313311203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221313311903) 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, 881898 + ... + 1104703.

It is an arithmetic number, because the mean of its divisors is an integer number (27963409752).

Almost surely, 2^221313311203 is an apocalyptic number.

221313311203 is a deficient number, since it is larger than the sum of its proper divisors (2393966813).

221313311203 is a wasteful number, since it uses less digits than its factorization.

221313311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987805.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 221313311203 its reverse (302113313122), we get a palindrome (523426624325).

The spelling of 221313311203 in words is "two hundred twenty-one billion, three hundred thirteen million, three hundred eleven thousand, two hundred three".