111531343 has 16 divisors (see below), whose sum is σ = 140361984. Its totient is φ = 86088960.

The previous prime is 111531337. The next prime is 111531359. The reversal of 111531343 is 343135111.

It is a cyclic number.

It is not a de Polignac number, because 111531343 - 2⁹ = 111530831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111531313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471 + ... + 15007.

It is an arithmetic number, because the mean of its divisors is an integer number (8772624).

Almost surely, 2^111531343 is an apocalyptic number.

111531343 is a deficient number, since it is larger than the sum of its proper divisors (28830641).

111531343 is a wasteful number, since it uses less digits than its factorization.

111531343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13662.

The product of its digits is 540, while the sum is 22.

The square root of 111531343 is about 10560.8400707519. The cubic root of 111531343 is about 481.3551735502.

Adding to 111531343 its reverse (343135111), we get a palindrome (454666454).

The spelling of 111531343 in words is "one hundred eleven million, five hundred thirty-one thousand, three hundred forty-three".