42043131320 has 64 divisors (see below), whose sum is σ = 97028569440. Its totient is φ = 16386854400.

The previous prime is 42043131293. The next prime is 42043131349. The reversal of 42043131320 is 2313134024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695090 + ... + 753150.

Almost surely, 2^42043131320 is an apocalyptic number.

42043131320 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 42043131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48514284720).

42043131320 is an abundant number, since it is smaller than the sum of its proper divisors (54985438120).

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

42043131320 is a wasteful number, since it uses less digits than its factorization.

42043131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58536 (or 58532 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 42043131320 its reverse (2313134024), we get a palindrome (44356265344).

The spelling of 42043131320 in words is "forty-two billion, forty-three million, one hundred thirty-one thousand, three hundred twenty".