111231141 has 8 divisors (see below), whose sum is σ = 169495104. Its totient is φ = 63560640.

The previous prime is 111231103. The next prime is 111231143. The reversal of 111231141 is 141132111.

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

It is not a de Polignac number, because 111231141 - 2⁶ = 111231077 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111231141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2648340 + ... + 2648381.

It is an arithmetic number, because the mean of its divisors is an integer number (21186888).

Almost surely, 2^111231141 is an apocalyptic number.

It is an amenable number.

111231141 is a deficient number, since it is larger than the sum of its proper divisors (58263963).

111231141 is an equidigital number, since it uses as much as digits as its factorization.

111231141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296731.

The product of its digits is 24, while the sum is 15.

The square root of 111231141 is about 10546.6175146347. The cubic root of 111231141 is about 480.9229075260.

Adding to 111231141 its reverse (141132111), we get a palindrome (252363252).

The spelling of 111231141 in words is "one hundred eleven million, two hundred thirty-one thousand, one hundred forty-one".