111020233231311 has 32 divisors (see below), whose sum is σ = 165299085354240. Its totient is φ = 65867268524544.

The previous prime is 111020233231307. The next prime is 111020233231333. The reversal of 111020233231311 is 113132332020111.

It is not a de Polignac number, because 111020233231311 - 2² = 111020233231307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020233231351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109026640 + ... + 110040213.

It is an arithmetic number, because the mean of its divisors is an integer number (5165596417320).

Almost surely, 2^{111020233231311} is an apocalyptic number.

111020233231311 is a deficient number, since it is larger than the sum of its proper divisors (54278852122929).

111020233231311 is a wasteful number, since it uses less digits than its factorization.

111020233231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219067415.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 111020233231311 its reverse (113132332020111), we get a palindrome (224152565251422).

The spelling of 111020233231311 in words is "one hundred eleven trillion, twenty billion, two hundred thirty-three million, two hundred thirty-one thousand, three hundred eleven".