111634216105 has 4 divisors (see below), whose sum is σ = 133961059332. Its totient is φ = 89307372880.

The previous prime is 111634216091. The next prime is 111634216147. The reversal of 111634216105 is 501612436111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72111583296 + 39522632809 = 268536^2 + 198803^2 .

It is not a de Polignac number, because 111634216105 - 2²¹ = 111632118953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11163421606 + ... + 11163421615.

It is an arithmetic number, because the mean of its divisors is an integer number (33490264833).

Almost surely, 2^111634216105 is an apocalyptic number.

It is an amenable number.

111634216105 is a deficient number, since it is larger than the sum of its proper divisors (22326843227).

111634216105 is an equidigital number, since it uses as much as digits as its factorization.

111634216105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22326843226.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 111634216105 in words is "one hundred eleven billion, six hundred thirty-four million, two hundred sixteen thousand, one hundred five".