1123243425212 has 12 divisors (see below), whose sum is σ = 1965687398136. Its totient is φ = 561618454320.

The previous prime is 1123243425181. The next prime is 1123243425217. The reversal of 1123243425212 is 2125243423211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123243425217) 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, 67118 + ... + 1500330.

It is an arithmetic number, because the mean of its divisors is an integer number (163807283178).

Almost surely, 2^{1123243425212} is an apocalyptic number.

It is an amenable number.

1123243425212 is a deficient number, since it is larger than the sum of its proper divisors (842443972924).

1123243425212 is a wasteful number, since it uses less digits than its factorization.

1123243425212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629148 (or 1629146 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

Adding to 1123243425212 its reverse (2125243423211), we get a palindrome (3248486848423).

The spelling of 1123243425212 in words is "one trillion, one hundred twenty-three billion, two hundred forty-three million, four hundred twenty-five thousand, two hundred twelve".