1123210113111 has 12 divisors (see below), whose sum is σ = 1656934068192. Its totient is φ = 732874683456.

The previous prime is 1123210113097. The next prime is 1123210113163. The reversal of 1123210113111 is 1113110123211.

It is not a de Polignac number, because 1123210113111 - 2¹⁴ = 1123210096727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123200113111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1327671106 + ... + 1327671951.

It is an arithmetic number, because the mean of its divisors is an integer number (138077839016).

Almost surely, 2^{1123210113111} is an apocalyptic number.

1123210113111 is a deficient number, since it is larger than the sum of its proper divisors (533723955081).

1123210113111 is a wasteful number, since it uses less digits than its factorization.

1123210113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655343110 (or 2655343107 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1123210113111 its reverse (1113110123211), we get a palindrome (2236320236322).

It can be divided in two parts, 1123210 and 113111, that added together give a palindrome (1236321).

The spelling of 1123210113111 in words is "one trillion, one hundred twenty-three billion, two hundred ten million, one hundred thirteen thousand, one hundred eleven".