42120032235505 has 8 divisors (see below), whose sum is σ = 57764615637312. Its totient is φ = 28882307818608.

The previous prime is 42120032235499. The next prime is 42120032235551. The reversal of 42120032235505 is 50553223002124.

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

It is a cyclic number.

It is not a de Polignac number, because 42120032235505 - 2⁹ = 42120032234993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601714746187 + ... + 601714746256.

It is an arithmetic number, because the mean of its divisors is an integer number (7220576954664).

Almost surely, 2^{42120032235505} is an apocalyptic number.

It is an amenable number.

42120032235505 is a deficient number, since it is larger than the sum of its proper divisors (15644583401807).

42120032235505 is a wasteful number, since it uses less digits than its factorization.

42120032235505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203429492455.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 42120032235505 its reverse (50553223002124), we get a palindrome (92673255237629).

The spelling of 42120032235505 in words is "forty-two trillion, one hundred twenty billion, thirty-two million, two hundred thirty-five thousand, five hundred five".