42020131340 has 48 divisors (see below), whose sum is σ = 101330853120. Its totient is φ = 14475833280.

The previous prime is 42020131339. The next prime is 42020131357. The reversal of 42020131340 is 4313102024.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5022152 + ... + 5030511.

It is an arithmetic number, because the mean of its divisors is an integer number (2111059440).

Almost surely, 2^42020131340 is an apocalyptic number.

It is an amenable number.

42020131340 is an abundant number, since it is smaller than the sum of its proper divisors (59310721780).

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

42020131340 is a wasteful number, since it uses less digits than its factorization.

42020131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052702 (or 10052700 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42020131340 its reverse (4313102024), we get a palindrome (46333233364).

The spelling of 42020131340 in words is "forty-two billion, twenty million, one hundred thirty-one thousand, three hundred forty".