1111201331112 has 48 divisors (see below), whose sum is σ = 3120966707040. Its totient is φ = 370400443056.

The previous prime is 1111201331089. The next prime is 1111201331147. The reversal of 1111201331112 is 2111331021111.

1111201331112 is a `hidden beast` number, since 11 + 11 + 201 + 331 + 112 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285800868 + ... + 285804755.

It is an arithmetic number, because the mean of its divisors is an integer number (65020139730).

Almost surely, 2^{1111201331112} is an apocalyptic number.

1111201331112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111201331112 is an abundant number, since it is smaller than the sum of its proper divisors (2009765375928).

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

1111201331112 is an equidigital number, since it uses as much as digits as its factorization.

1111201331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571605644 (or 571605628 counting only the distinct ones).

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

Adding to 1111201331112 its reverse (2111331021111), we get a palindrome (3222532352223).

The spelling of 1111201331112 in words is "one trillion, one hundred eleven billion, two hundred one million, three hundred thirty-one thousand, one hundred twelve".