111303120012 has 72 divisors (see below), whose sum is σ = 313252079616. Its totient is φ = 30127152096.

The previous prime is 111303119959. The next prime is 111303120013. The reversal of 111303120012 is 210021303111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111303119973 and 111303120000.

It is not an unprimeable number, because it can be changed into a prime (111303120013) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1804908 + ... + 1865555.

It is an arithmetic number, because the mean of its divisors is an integer number (4350723328).

Almost surely, 2^111303120012 is an apocalyptic number.

111303120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111303120012 is an abundant number, since it is smaller than the sum of its proper divisors (201948959604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111303120012 is a wasteful number, since it uses less digits than its factorization.

111303120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670515 (or 3670494 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111303120012 its reverse (210021303111), we get a palindrome (321324423123).

The spelling of 111303120012 in words is "one hundred eleven billion, three hundred three million, one hundred twenty thousand, twelve".