42040121304430 has 32 divisors (see below), whose sum is σ = 75701029379040. Its totient is φ = 16809646694400.

The previous prime is 42040121304373. The next prime is 42040121304481. The reversal of 42040121304430 is 3440312104024.

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, 973106830 + ... + 973150030.

It is an arithmetic number, because the mean of its divisors is an integer number (2365657168095).

Almost surely, 2^{42040121304430} is an apocalyptic number.

42040121304430 is a deficient number, since it is larger than the sum of its proper divisors (33660908074610).

42040121304430 is a wasteful number, since it uses less digits than its factorization.

42040121304430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78004.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 42040121304430 its reverse (3440312104024), we get a palindrome (45480433408454).

The spelling of 42040121304430 in words is "forty-two trillion, forty billion, one hundred twenty-one million, three hundred four thousand, four hundred thirty".