42421112431205 has 8 divisors (see below), whose sum is σ = 51518652206112. Its totient is φ = 33528011752528.

The previous prime is 42421112431151. The next prime is 42421112431207. The reversal of 42421112431205 is 50213421112424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42421112431205 is a prime.

It is a super-3 number, since 3×42421112431205³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421112431207) 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, 51109773599 + ... + 51109774428.

It is an arithmetic number, because the mean of its divisors is an integer number (6439831525764).

Almost surely, 2^{42421112431205} is an apocalyptic number.

It is an amenable number.

42421112431205 is a deficient number, since it is larger than the sum of its proper divisors (9097539774907).

42421112431205 is a wasteful number, since it uses less digits than its factorization.

42421112431205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102219548115.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 42421112431205 its reverse (50213421112424), we get a palindrome (92634533543629).

The spelling of 42421112431205 in words is "forty-two trillion, four hundred twenty-one billion, one hundred twelve million, four hundred thirty-one thousand, two hundred five".