42123243422 has 16 divisors (see below), whose sum is σ = 68057518032. Its totient is φ = 19437988800.

The previous prime is 42123243401. The next prime is 42123243469. The reversal of 42123243422 is 22434232124.

It is a congruent 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, 3578 + ... + 290274.

It is an arithmetic number, because the mean of its divisors is an integer number (4253594877).

Almost surely, 2^42123243422 is an apocalyptic number.

42123243422 is a deficient number, since it is larger than the sum of its proper divisors (25934274610).

42123243422 is a wasteful number, since it uses less digits than its factorization.

42123243422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292363.

The product of its digits is 18432, while the sum is 29.

Adding to 42123243422 its reverse (22434232124), we get a palindrome (64557475546).

The spelling of 42123243422 in words is "forty-two billion, one hundred twenty-three million, two hundred forty-three thousand, four hundred twenty-two".