42321311340 has 192 divisors, whose sum is σ = 147947240448. Its totient is φ = 8781696000.

The previous prime is 42321311339. The next prime is 42321311393. The reversal of 42321311340 is 4311312324.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42321311340.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3491290 + ... + 3503390.

It is an arithmetic number, because the mean of its divisors is an integer number (770558544).

Almost surely, 2^42321311340 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 42321311340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73973620224).

42321311340 is an abundant number, since it is smaller than the sum of its proper divisors (105625929108).

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

42321311340 is a wasteful number, since it uses less digits than its factorization.

42321311340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12888 (or 12886 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 42321311340 its reverse (4311312324), we get a palindrome (46632623664).

The spelling of 42321311340 in words is "forty-two billion, three hundred twenty-one million, three hundred eleven thousand, three hundred forty".