42123204344 has 64 divisors (see below), whose sum is σ = 87293052000. Its totient is φ = 18936322560.

The previous prime is 42123204337. The next prime is 42123204413. The reversal of 42123204344 is 44340232124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637334 + ... + 700314.

Almost surely, 2^42123204344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42123204344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43646526000).

42123204344 is an abundant number, since it is smaller than the sum of its proper divisors (45169847656).

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

42123204344 is a wasteful number, since it uses less digits than its factorization.

42123204344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63168 (or 63164 counting only the distinct ones).

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

Adding to 42123204344 its reverse (44340232124), we get a palindrome (86463436468).

The spelling of 42123204344 in words is "forty-two billion, one hundred twenty-three million, two hundred four thousand, three hundred forty-four".