111001312102 has 16 divisors (see below), whose sum is σ = 169055437824. Its totient is φ = 54651429000.

The previous prime is 111001312027. The next prime is 111001312117. The reversal of 111001312102 is 201213100111.

It is a happy number.

It is a super-2 number, since 2×111001312102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366774 + ... + 597097.

It is an arithmetic number, because the mean of its divisors is an integer number (10565964864).

Almost surely, 2^111001312102 is an apocalyptic number.

111001312102 is a deficient number, since it is larger than the sum of its proper divisors (58054125722).

111001312102 is an equidigital number, since it uses as much as digits as its factorization.

111001312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964755.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111001312102 its reverse (201213100111), we get a palindrome (312214412213).

The spelling of 111001312102 in words is "one hundred eleven billion, one million, three hundred twelve thousand, one hundred two".