111369705841 has 3 divisors (see below), whose sum is σ = 111370039563. Its totient is φ = 111369372120.

The previous prime is 111369705803. The next prime is 111369705883. The reversal of 111369705841 is 148507963111.

The square root of 111369705841 is 333721.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 91488705841 + 19881000000 = 302471^2 + 141000^2 .

It is not a de Polignac number, because 111369705841 - 2¹¹ = 111369703793 is a prime.

It is a super-2 number, since 2×111369705841² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111369705791 and 111369705800.

It is not an unprimeable number, because it can be changed into a prime (111369705641) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 166861 + ... + 500581.

It is an arithmetic number, because the mean of its divisors is an integer number (37123346521).

Almost surely, 2^111369705841 is an apocalyptic number.

111369705841 is the 333721-st square number.

111369705841 is the 166861-st centered octagonal number.

It is an amenable number.

111369705841 is a deficient number, since it is larger than the sum of its proper divisors (333722).

111369705841 is an frugal number, since it uses more digits than its factorization.

111369705841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667442 (or 333721 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 111369705841 in words is "one hundred eleven billion, three hundred sixty-nine million, seven hundred five thousand, eight hundred forty-one".