1111331201112 has 128 divisors (see below), whose sum is σ = 3544916256000. Its totient is φ = 319042437120.

The previous prime is 1111331201111. The next prime is 1111331201179. The reversal of 1111331201112 is 2111021331111.

1111331201112 is a `hidden beast` number, since 11 + 11 + 331 + 201 + 112 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111331201111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12263593 + ... + 12353880.

It is an arithmetic number, because the mean of its divisors is an integer number (27694658250).

Almost surely, 2^{1111331201112} is an apocalyptic number.

1111331201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111331201112 is an abundant number, since it is smaller than the sum of its proper divisors (2433585054888).

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

1111331201112 is a wasteful number, since it uses less digits than its factorization.

1111331201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24617518 (or 24617508 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1111331201112 its reverse (2111021331111), we get a palindrome (3222352532223).

The spelling of 1111331201112 in words is "one trillion, one hundred eleven billion, three hundred thirty-one million, two hundred one thousand, one hundred twelve".