111132473 has 2 divisors, whose sum is σ = 111132474. Its totient is φ = 111132472.

The previous prime is 111132443. The next prime is 111132523. The reversal of 111132473 is 374231111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93934864 + 17197609 = 9692^2 + 4147^2 .

It is an emirp because it is prime and its reverse (374231111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111132473 - 2¹⁶ = 111066937 is a prime.

It is not a weakly prime, because it can be changed into another prime (111132403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55566236 + 55566237.

It is an arithmetic number, because the mean of its divisors is an integer number (55566237).

Almost surely, 2^111132473 is an apocalyptic number.

It is an amenable number.

111132473 is a deficient number, since it is larger than the sum of its proper divisors (1).

111132473 is an equidigital number, since it uses as much as digits as its factorization.

111132473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 23.

The square root of 111132473 is about 10541.9387685568. The cubic root of 111132473 is about 480.7806639700.

Adding to 111132473 its reverse (374231111), we get a palindrome (485363584).

The spelling of 111132473 in words is "one hundred eleven million, one hundred thirty-two thousand, four hundred seventy-three".