111000009941 has 2 divisors, whose sum is σ = 111000009942. Its totient is φ = 111000009940.

The previous prime is 111000009929. The next prime is 111000009961. The reversal of 111000009941 is 149900000111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110177524900 + 822485041 = 331930^2 + 28679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000009941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111000009941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111000009961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500004970 + 55500004971.

It is an arithmetic number, because the mean of its divisors is an integer number (55500004971).

Almost surely, 2^111000009941 is an apocalyptic number.

It is an amenable number.

111000009941 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000009941 is an equidigital number, since it uses as much as digits as its factorization.

111000009941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 111000009941 in words is "one hundred eleven billion, nine thousand, nine hundred forty-one".