1111312203012 has 108 divisors (see below), whose sum is σ = 3250256777040. Its totient is φ = 319036972320.

The previous prime is 1111312202981. The next prime is 1111312203013. The reversal of 1111312203012 is 2103022131111.

1111312203012 is a `hidden beast` number, since 1 + 11 + 131 + 220 + 301 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1111312203013) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6630978 + ... + 6796505.

Almost surely, 2^{1111312203012} is an apocalyptic number.

1111312203012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111312203012 is an abundant number, since it is smaller than the sum of its proper divisors (2138944574028).

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

1111312203012 is a wasteful number, since it uses less digits than its factorization.

1111312203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13427534 (or 13427518 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1111312203012 its reverse (2103022131111), we get a palindrome (3214334334123).

The spelling of 1111312203012 in words is "one trillion, one hundred eleven billion, three hundred twelve million, two hundred three thousand, twelve".