1112011221031 has 4 divisors (see below), whose sum is σ = 1112167256112. Its totient is φ = 1111855185952.

The previous prime is 1112011220987. The next prime is 1112011221047. The reversal of 1112011221031 is 1301221102111.

It is a happy number.

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 1112011221031 - 2³³ = 1103421286439 is a prime.

It is a super-2 number, since 2×1112011221031² (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 = 1112011220996 and 1112011221014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112011221131) 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, 78006850 + ... + 78021103.

It is an arithmetic number, because the mean of its divisors is an integer number (278041814028).

Almost surely, 2^{1112011221031} is an apocalyptic number.

1112011221031 is a deficient number, since it is larger than the sum of its proper divisors (156035081).

1112011221031 is an equidigital number, since it uses as much as digits as its factorization.

1112011221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156035080.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1112011221031 its reverse (1301221102111), we get a palindrome (2413232323142).

The spelling of 1112011221031 in words is "one trillion, one hundred twelve billion, eleven million, two hundred twenty-one thousand, thirty-one".