111232401 has 12 divisors (see below), whose sum is σ = 172523952. Its totient is φ = 63561288.

The previous prime is 111232369. The next prime is 111232421. The reversal of 111232401 is 104232111.

It is not a de Polignac number, because 111232401 - 2⁵ = 111232369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111232421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378195 + ... + 378488.

It is an arithmetic number, because the mean of its divisors is an integer number (14376996).

Almost surely, 2^111232401 is an apocalyptic number.

It is an amenable number.

111232401 is a deficient number, since it is larger than the sum of its proper divisors (61291551).

111232401 is an equidigital number, since it uses as much as digits as its factorization.

111232401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756700 (or 756693 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111232401 is about 10546.6772492572. The cubic root of 111232401 is about 480.9247234460.

Adding to 111232401 its reverse (104232111), we get a palindrome (215464512).

The spelling of 111232401 in words is "one hundred eleven million, two hundred thirty-two thousand, four hundred one".