111302031311 has 2 divisors, whose sum is σ = 111302031312. Its totient is φ = 111302031310.

The previous prime is 111302031301. The next prime is 111302031329. The reversal of 111302031311 is 113130203111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111302031311 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111302031311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111302031301) 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 as a sum of consecutive naturals, namely, 55651015655 + 55651015656.

It is an arithmetic number, because the mean of its divisors is an integer number (55651015656).

Almost surely, 2^111302031311 is an apocalyptic number.

111302031311 is a deficient number, since it is larger than the sum of its proper divisors (1).

111302031311 is an equidigital number, since it uses as much as digits as its factorization.

111302031311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 111302031311 its reverse (113130203111), we get a palindrome (224432234422).

The spelling of 111302031311 in words is "one hundred eleven billion, three hundred two million, thirty-one thousand, three hundred eleven".