1123442423312 has 40 divisors (see below), whose sum is σ = 2429770838880. Its totient is φ = 498779930880.

The previous prime is 1123442423281. The next prime is 1123442423339. The reversal of 1123442423312 is 2133242443211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74215637 + ... + 74230772.

It is an arithmetic number, because the mean of its divisors is an integer number (60744270972).

Almost surely, 2^{1123442423312} is an apocalyptic number.

It is an amenable number.

1123442423312 is an abundant number, since it is smaller than the sum of its proper divisors (1306328415568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123442423312 is a wasteful number, since it uses less digits than its factorization.

1123442423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148446471 (or 148446465 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

Adding to 1123442423312 its reverse (2133242443211), we get a palindrome (3256684866523).

The spelling of 1123442423312 in words is "one trillion, one hundred twenty-three billion, four hundred forty-two million, four hundred twenty-three thousand, three hundred twelve".