111132001 has 2 divisors, whose sum is σ = 111132002. Its totient is φ = 111132000.

The previous prime is 111131981. The next prime is 111132011. The reversal of 111132001 is 100231111.

It is an a-pointer prime, because the next prime (111132011) can be obtained adding 111132001 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 40401 = 10540^2 + 201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111132001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111132011) 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 as a sum of consecutive naturals, namely, 55566000 + 55566001.

It is an arithmetic number, because the mean of its divisors is an integer number (55566001).

Almost surely, 2^111132001 is an apocalyptic number.

It is an amenable number.

111132001 is a deficient number, since it is larger than the sum of its proper divisors (1).

111132001 is an equidigital number, since it uses as much as digits as its factorization.

111132001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 111132001 is about 10541.9163817591. The cubic root of 111132001 is about 480.7799833145.

Adding to 111132001 its reverse (100231111), we get a palindrome (211363112).

The spelling of 111132001 in words is "one hundred eleven million, one hundred thirty-two thousand, one".