42040334234121 has 8 divisors (see below), whose sum is σ = 56178620359200. Its totient is φ = 27964468799232.

The previous prime is 42040334234081. The next prime is 42040334234159. The reversal of 42040334234121 is 12143243304024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42040334234121 - 2¹¹ = 42040334232073 is a prime.

It is a super-2 number, since 2×42040334234121² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42040334234191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15605170975 + ... + 15605173668.

It is an arithmetic number, because the mean of its divisors is an integer number (7022327544900).

Almost surely, 2^{42040334234121} is an apocalyptic number.

It is an amenable number.

42040334234121 is a deficient number, since it is larger than the sum of its proper divisors (14138286125079).

42040334234121 is a wasteful number, since it uses less digits than its factorization.

42040334234121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31210345095.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 42040334234121 its reverse (12143243304024), we get a palindrome (54183577538145).

The spelling of 42040334234121 in words is "forty-two trillion, forty billion, three hundred thirty-four million, two hundred thirty-four thousand, one hundred twenty-one".