1112220031231 has 4 divisors (see below), whose sum is σ = 1118364893464. Its totient is φ = 1106075169000.

The previous prime is 1112220031211. The next prime is 1112220031261. The reversal of 1112220031231 is 1321300222111.

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

It is a cyclic number.

It is not a de Polignac number, because 1112220031231 - 2⁷ = 1112220031103 is a prime.

It is a super-2 number, since 2×1112220031231² (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 = 1112220031199 and 1112220031208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112220031211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3072430845 + ... + 3072431206.

It is an arithmetic number, because the mean of its divisors is an integer number (279591223366).

Almost surely, 2^{1112220031231} is an apocalyptic number.

1112220031231 is a deficient number, since it is larger than the sum of its proper divisors (6144862233).

1112220031231 is an equidigital number, since it uses as much as digits as its factorization.

1112220031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6144862232.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1112220031231 its reverse (1321300222111), we get a palindrome (2433520253342).

The spelling of 1112220031231 in words is "one trillion, one hundred twelve billion, two hundred twenty million, thirty-one thousand, two hundred thirty-one".