111749721305 has 8 divisors (see below), whose sum is σ = 139930085952. Its totient is φ = 85512830128.

The previous prime is 111749721287. The next prime is 111749721313. The reversal of 111749721305 is 503127947111.

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

It is not a de Polignac number, because 111749721305 - 2⁶ = 111749721241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485868239 + ... + 485868468.

It is an arithmetic number, because the mean of its divisors is an integer number (17491260744).

Almost surely, 2^111749721305 is an apocalyptic number.

It is an amenable number.

111749721305 is a deficient number, since it is larger than the sum of its proper divisors (28180364647).

111749721305 is an equidigital number, since it uses as much as digits as its factorization.

111749721305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971736735.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 111749721305 in words is "one hundred eleven billion, seven hundred forty-nine million, seven hundred twenty-one thousand, three hundred five".