111041201321 has 12 divisors (see below), whose sum is σ = 112820036868. Its totient is φ = 109289977632.

The previous prime is 111041201263. The next prime is 111041201329. The reversal of 111041201321 is 123102140111.

It can be written as a sum of positive squares in 2 ways, for example, as 90579329296 + 20461872025 = 300964^2 + 143045^2 .

It is not a de Polignac number, because 111041201321 - 2¹⁴ = 111041184937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111041201321.

It is not an unprimeable number, because it can be changed into a prime (111041201329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5542895 + ... + 5562891.

It is an arithmetic number, because the mean of its divisors is an integer number (9401669739).

Almost surely, 2^111041201321 is an apocalyptic number.

It is an amenable number.

111041201321 is a deficient number, since it is larger than the sum of its proper divisors (1778835547).

111041201321 is an equidigital number, since it uses as much as digits as its factorization.

111041201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21368 (or 21301 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111041201321 its reverse (123102140111), we get a palindrome (234143341432).

The spelling of 111041201321 in words is "one hundred eleven billion, forty-one million, two hundred one thousand, three hundred twenty-one".