111021434 has 8 divisors (see below), whose sum is σ = 168149280. Its totient is φ = 54971676.

The previous prime is 111021431. The next prime is 111021439. The reversal of 111021434 is 434120111.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (111021431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269264 + ... + 269675.

It is an arithmetic number, because the mean of its divisors is an integer number (21018660).

Almost surely, 2^111021434 is an apocalyptic number.

111021434 is a deficient number, since it is larger than the sum of its proper divisors (57127846).

111021434 is a wasteful number, since it uses less digits than its factorization.

111021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539044.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 111021434 is about 10536.6709163758. The cubic root of 111021434 is about 480.6204851829.

Adding to 111021434 its reverse (434120111), we get a palindrome (545141545).

The spelling of 111021434 in words is "one hundred eleven million, twenty-one thousand, four hundred thirty-four".