111320001 has 48 divisors (see below), whose sum is σ = 181621440. Its totient is φ = 67728960.

The previous prime is 111319997. The next prime is 111320047. The reversal of 111320001 is 100023111.

It is not a de Polignac number, because 111320001 - 2² = 111319997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111320051) 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 in 47 ways as a sum of consecutive naturals, for example, 413695 + ... + 413963.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^111320001 is an apocalyptic number.

It is an amenable number.

111320001 is a deficient number, since it is larger than the sum of its proper divisors (70301439).

111320001 is a wasteful number, since it uses less digits than its factorization.

111320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 111320001 is about 10550.8293986776. The cubic root of 111320001 is about 481.0509395210.

Adding to 111320001 its reverse (100023111), we get a palindrome (211343112).

The spelling of 111320001 in words is "one hundred eleven million, three hundred twenty thousand, one".