42342120343220 has 48 divisors (see below), whose sum is σ = 89082899696448. Its totient is φ = 16905533314560.

The previous prime is 42342120343177. The next prime is 42342120343223. The reversal of 42342120343220 is 2234302124324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42342120343223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81463079 + ... + 81981201.

It is an arithmetic number, because the mean of its divisors is an integer number (1855893743676).

Almost surely, 2^{42342120343220} is an apocalyptic number.

It is an amenable number.

42342120343220 is an abundant number, since it is smaller than the sum of its proper divisors (46740779353228).

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

42342120343220 is a wasteful number, since it uses less digits than its factorization.

42342120343220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525680 (or 525678 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 42342120343220 its reverse (2234302124324), we get a palindrome (44576422467544).

The spelling of 42342120343220 in words is "forty-two trillion, three hundred forty-two billion, one hundred twenty million, three hundred forty-three thousand, two hundred twenty".