1232123442 has 32 divisors (see below), whose sum is σ = 2714900544. Its totient is φ = 369672000.

The previous prime is 1232123441. The next prime is 1232123443. The reversal of 1232123442 is 2443212321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1232123441) and next prime (1232123443).

It is not an unprimeable number, because it can be changed into a prime (1232123441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85753 + ... + 99084.

It is an arithmetic number, because the mean of its divisors is an integer number (84840642).

Almost surely, 2^1232123442 is an apocalyptic number.

1232123442 is an abundant number, since it is smaller than the sum of its proper divisors (1482777102).

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

1232123442 is a wasteful number, since it uses less digits than its factorization.

1232123442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184954.

The product of its digits is 2304, while the sum is 24.

The square root of 1232123442 is about 35101.6159457083. The cubic root of 1232123442 is about 1072.0574852453.

Adding to 1232123442 its reverse (2443212321), we get a palindrome (3675335763).

It can be divided in two parts, 12321 and 23442, that multiplied together give a palindrome (288828882).

The spelling of 1232123442 in words is "one billion, two hundred thirty-two million, one hundred twenty-three thousand, four hundred forty-two".