1112111231331 has 4 divisors (see below), whose sum is σ = 1482814975112. Its totient is φ = 741407487552.

The previous prime is 1112111231327. The next prime is 1112111231423. The reversal of 1112111231331 is 1331321112111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1112111231331 - 2² = 1112111231327 is a prime.

It is a super-2 number, since 2×1112111231331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112111231298 and 1112111231307.

It is not an unprimeable number, because it can be changed into a prime (1112111231431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185351871886 + ... + 185351871891.

It is an arithmetic number, because the mean of its divisors is an integer number (370703743778).

Almost surely, 2^{1112111231331} is an apocalyptic number.

1112111231331 is a deficient number, since it is larger than the sum of its proper divisors (370703743781).

1112111231331 is an equidigital number, since it uses as much as digits as its factorization.

1112111231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370703743780.

The product of its digits is 108, while the sum is 21.

Adding to 1112111231331 its reverse (1331321112111), we get a palindrome (2443432343442).

The spelling of 1112111231331 in words is "one trillion, one hundred twelve billion, one hundred eleven million, two hundred thirty-one thousand, three hundred thirty-one".