112111001 has 4 divisors (see below), whose sum is σ = 118011600. Its totient is φ = 106210404.

The previous prime is 112110989. The next prime is 112111009. The reversal of 112111001 is 100111211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100111211 = 311 ⋅321901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112111001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112111001.

It is not an unprimeable number, because it can be changed into a prime (112111009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2950271 + ... + 2950308.

It is an arithmetic number, because the mean of its divisors is an integer number (29502900).

Almost surely, 2^112111001 is an apocalyptic number.

It is an amenable number.

112111001 is a deficient number, since it is larger than the sum of its proper divisors (5900599).

112111001 is an equidigital number, since it uses as much as digits as its factorization.

112111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900598.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 112111001 is about 10588.2482498287. The cubic root of 112111001 is about 482.1876432335.

Adding to 112111001 its reverse (100111211), we get a palindrome (212222212).

It can be divided in two parts, 11211 and 1001, that multiplied together give a palindrome (11222211).

The spelling of 112111001 in words is "one hundred twelve million, one hundred eleven thousand, one".