42131013320 has 64 divisors (see below), whose sum is σ = 103587517440. Its totient is φ = 15294438400.

The previous prime is 42131013313. The next prime is 42131013329. The reversal of 42131013320 is 2331013124.

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

It is a junction number, because it is equal to n+sod(n) for n = 42131013292 and 42131013301.

It is not an unprimeable number, because it can be changed into a prime (42131013329) 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, 180185 + ... + 341655.

It is an arithmetic number, because the mean of its divisors is an integer number (1618554960).

Almost surely, 2^42131013320 is an apocalyptic number.

42131013320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42131013320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51793758720).

42131013320 is an abundant number, since it is smaller than the sum of its proper divisors (61456504120).

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

42131013320 is a wasteful number, since it uses less digits than its factorization.

42131013320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162086 (or 162082 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 42131013320 its reverse (2331013124), we get a palindrome (44462026444).

The spelling of 42131013320 in words is "forty-two billion, one hundred thirty-one million, thirteen thousand, three hundred twenty".