1112103131221 has 4 divisors (see below), whose sum is σ = 1115462959744. Its totient is φ = 1108743302700.

The previous prime is 1112103131197. The next prime is 1112103131327. The reversal of 1112103131221 is 1221313012111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1112103131221 - 2¹⁵ = 1112103098453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112103132221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679913765 + ... + 1679914426.

It is an arithmetic number, because the mean of its divisors is an integer number (278865739936).

Almost surely, 2^{1112103131221} is an apocalyptic number.

It is an amenable number.

1112103131221 is a deficient number, since it is larger than the sum of its proper divisors (3359828523).

1112103131221 is an equidigital number, since it uses as much as digits as its factorization.

1112103131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359828522.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1112103131221 its reverse (1221313012111), we get a palindrome (2333416143332).

The spelling of 1112103131221 in words is "one trillion, one hundred twelve billion, one hundred three million, one hundred thirty-one thousand, two hundred twenty-one".