3111111221303 has 8 divisors (see below), whose sum is σ = 3123310440000. Its totient is φ = 3098935623168.

The previous prime is 3111111221297. The next prime is 3111111221329. The reversal of 3111111221303 is 3031221111113.

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

It is a cyclic number.

It is not a de Polignac number, because 3111111221303 - 2¹⁴ = 3111111204919 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 (3111111221363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5641178 + ... + 6168071.

It is an arithmetic number, because the mean of its divisors is an integer number (390413805000).

Almost surely, 2^{3111111221303} is an apocalyptic number.

3111111221303 is a deficient number, since it is larger than the sum of its proper divisors (12199218697).

3111111221303 is a wasteful number, since it uses less digits than its factorization.

3111111221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11810281.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 3111111221303 its reverse (3031221111113), we get a palindrome (6142332332416).

The spelling of 3111111221303 in words is "three trillion, one hundred eleven billion, one hundred eleven million, two hundred twenty-one thousand, three hundred three".