42019520331 has 4 divisors (see below), whose sum is σ = 56026027112. Its totient is φ = 28013013552.

The previous prime is 42019520329. The next prime is 42019520371. The reversal of 42019520331 is 13302591024.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42019520331 - 2¹ = 42019520329 is a prime.

It is a super-2 number, since 2×42019520331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42019520371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7003253386 + ... + 7003253391.

It is an arithmetic number, because the mean of its divisors is an integer number (14006506778).

Almost surely, 2^42019520331 is an apocalyptic number.

42019520331 is a deficient number, since it is larger than the sum of its proper divisors (14006506781).

42019520331 is a wasteful number, since it uses less digits than its factorization.

42019520331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14006506780.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 42019520331 in words is "forty-two billion, nineteen million, five hundred twenty thousand, three hundred thirty-one".