111120481 has 2 divisors, whose sum is σ = 111120482. Its totient is φ = 111120480.

The previous prime is 111120439. The next prime is 111120487. The reversal of 111120481 is 184021111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90554256 + 20566225 = 9516^2 + 4535^2 .

It is an emirp because it is prime and its reverse (184021111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111120481 - 2¹¹ = 111118433 is a prime.

It is a super-2 number, since 2×111120481² = 24695522595342722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111120487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560240 + 55560241.

It is an arithmetic number, because the mean of its divisors is an integer number (55560241).

Almost surely, 2^111120481 is an apocalyptic number.

It is an amenable number.

111120481 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120481 is an equidigital number, since it uses as much as digits as its factorization.

111120481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 111120481 is about 10541.3699773796. The cubic root of 111120481 is about 480.7633701075.

Adding to 111120481 its reverse (184021111), we get a palindrome (295141592).

The spelling of 111120481 in words is "one hundred eleven million, one hundred twenty thousand, four hundred eighty-one".