1113103213231 has 4 divisors (see below), whose sum is σ = 1113142231000. Its totient is φ = 1113064195464.

The previous prime is 1113103213163. The next prime is 1113103213249. The reversal of 1113103213231 is 1323123013111.

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 1113103213231 - 2¹⁵ = 1113103180463 is a prime.

It is a super-2 number, since 2×1113103213231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113103813231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19466061 + ... + 19523158.

It is an arithmetic number, because the mean of its divisors is an integer number (278285557750).

Almost surely, 2^{1113103213231} is an apocalyptic number.

1113103213231 is a deficient number, since it is larger than the sum of its proper divisors (39017769).

1113103213231 is an equidigital number, since it uses as much as digits as its factorization.

1113103213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39017768.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1113103213231 its reverse (1323123013111), we get a palindrome (2436226226342).

The spelling of 1113103213231 in words is "one trillion, one hundred thirteen billion, one hundred three million, two hundred thirteen thousand, two hundred thirty-one".