111231311141 has 24 divisors (see below), whose sum is σ = 117268120512. Its totient is φ = 105475392000.

The previous prime is 111231311119. The next prime is 111231311153. The reversal of 111231311141 is 141113132111.

It is not a de Polignac number, because 111231311141 - 2²² = 111227116837 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 (111231311101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12422216 + ... + 12431166.

It is an arithmetic number, because the mean of its divisors is an integer number (4886171688).

Almost surely, 2^111231311141 is an apocalyptic number.

It is an amenable number.

111231311141 is a deficient number, since it is larger than the sum of its proper divisors (6036809371).

111231311141 is an equidigital number, since it uses as much as digits as its factorization.

111231311141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9273 (or 9242 counting only the distinct ones).

The product of its digits is 72, while the sum is 20.

Adding to 111231311141 its reverse (141113132111), we get a palindrome (252344443252).

The spelling of 111231311141 in words is "one hundred eleven billion, two hundred thirty-one million, three hundred eleven thousand, one hundred forty-one".