111212353 has 16 divisors (see below), whose sum is σ = 129565440. Its totient is φ = 93494016.

The previous prime is 111212347. The next prime is 111212357. The reversal of 111212353 is 353212111.

It is a de Polignac number, because none of the positive numbers 2^k-111212353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111212353.

It is not an unprimeable number, because it can be changed into a prime (111212357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84700 + ... + 86002.

It is an arithmetic number, because the mean of its divisors is an integer number (8097840).

Almost surely, 2^111212353 is an apocalyptic number.

It is an amenable number.

111212353 is a deficient number, since it is larger than the sum of its proper divisors (18353087).

111212353 is a wasteful number, since it uses less digits than its factorization.

111212353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its digits is 180, while the sum is 19.

The square root of 111212353 is about 10545.7267649034. The cubic root of 111212353 is about 480.8958285135.

Adding to 111212353 its reverse (353212111), we get a palindrome (464424464).

The spelling of 111212353 in words is "one hundred eleven million, two hundred twelve thousand, three hundred fifty-three".