311111111103 has 8 divisors (see below), whose sum is σ = 446723646768. Its totient is φ = 191452991424.

The previous prime is 311111111053. The next prime is 311111111111. The reversal of 311111111103 is 301111111113.

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

It is not a de Polignac number, because 311111111103 - 2²⁹ = 310574240191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311111119103) 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 7 ways as a sum of consecutive naturals, for example, 3988603950 + ... + 3988604027.

It is an arithmetic number, because the mean of its divisors is an integer number (55840455846).

Almost surely, 2^311111111103 is an apocalyptic number.

311111111103 is a deficient number, since it is larger than the sum of its proper divisors (135612535665).

311111111103 is a wasteful number, since it uses less digits than its factorization.

311111111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7977207993.

The product of its (nonzero) digits is 9, while the sum is 15.

Adding to 311111111103 its reverse (301111111113), we get a palindrome (612222222216).

It can be divided in two parts, 31111111110 and 3, that added together give a palindrome (31111111113).

The spelling of 311111111103 in words is "three hundred eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred three".