111120111001 has 4 divisors (see below), whose sum is σ = 111919536400. Its totient is φ = 110320685604.

The previous prime is 111120110971. The next prime is 111120111049. The reversal of 111120111001 is 100111021111.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111120111001 is a prime.

It is a super-2 number, since 2×111120111001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111120111701) 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, 399712491 + ... + 399712768.

It is an arithmetic number, because the mean of its divisors is an integer number (27979884100).

Almost surely, 2^111120111001 is an apocalyptic number.

It is an amenable number.

111120111001 is a deficient number, since it is larger than the sum of its proper divisors (799425399).

111120111001 is an equidigital number, since it uses as much as digits as its factorization.

111120111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799425398.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 111120111001 its reverse (100111021111), we get a palindrome (211231132112).

The spelling of 111120111001 in words is "one hundred eleven billion, one hundred twenty million, one hundred eleven thousand, one".