111020311 has 8 divisors (see below), whose sum is σ = 113178384. Its totient is φ = 108883200.

The previous prime is 111020297. The next prime is 111020339. The reversal of 111020311 is 113020111.

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

It is not a de Polignac number, because 111020311 - 2¹⁷ = 110889239 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 (111020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5671 + ... + 15943.

It is an arithmetic number, because the mean of its divisors is an integer number (14147298).

Almost surely, 2^111020311 is an apocalyptic number.

111020311 is a deficient number, since it is larger than the sum of its proper divisors (2158073).

111020311 is a wasteful number, since it uses less digits than its factorization.

111020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 111020311 is about 10536.6176261645. The cubic root of 111020311 is about 480.6188646591.

Adding to 111020311 its reverse (113020111), we get a palindrome (224040422).

The spelling of 111020311 in words is "one hundred eleven million, twenty thousand, three hundred eleven".