42123313232 has 80 divisors (see below), whose sum is σ = 109579569792. Its totient is φ = 15149237760.

The previous prime is 42123313231. The next prime is 42123313289. The reversal of 42123313232 is 23231332124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42123313231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299023 + ... + 1331054.

Almost surely, 2^42123313232 is an apocalyptic number.

It is an amenable number.

42123313232 is an abundant number, since it is smaller than the sum of its proper divisors (67456256560).

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

42123313232 is a wasteful number, since it uses less digits than its factorization.

42123313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630116 (or 2630110 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

Adding to 42123313232 its reverse (23231332124), we get a palindrome (65354645356).

The spelling of 42123313232 in words is "forty-two billion, one hundred twenty-three million, three hundred thirteen thousand, two hundred thirty-two".