111342429 has 24 divisors (see below), whose sum is σ = 179734464. Its totient is φ = 65832000.

The previous prime is 111342419. The next prime is 111342431. The reversal of 111342429 is 924243111.

It is a happy number.

It is not a de Polignac number, because 111342429 - 2¹² = 111338333 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111342419) 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, 9657 + ... + 17774.

It is an arithmetic number, because the mean of its divisors is an integer number (7488936).

Almost surely, 2^111342429 is an apocalyptic number.

It is an amenable number.

111342429 is a deficient number, since it is larger than the sum of its proper divisors (68392035).

111342429 is a wasteful number, since it uses less digits than its factorization.

111342429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27489 (or 27486 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 111342429 is about 10551.8921999801. The cubic root of 111342429 is about 481.0832436469.

The spelling of 111342429 in words is "one hundred eleven million, three hundred forty-two thousand, four hundred twenty-nine".