42120332331 has 48 divisors (see below), whose sum is σ = 74367237888. Its totient is φ = 20929339200.

The previous prime is 42120332299. The next prime is 42120332333. The reversal of 42120332331 is 13323302124.

It is not a de Polignac number, because 42120332331 - 2⁵ = 42120332299 is a prime.

It is a super-2 number, since 2×42120332331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42120332333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 529080 + ... + 603461.

It is an arithmetic number, because the mean of its divisors is an integer number (1549317456).

Almost surely, 2^42120332331 is an apocalyptic number.

42120332331 is a deficient number, since it is larger than the sum of its proper divisors (32246905557).

42120332331 is a wasteful number, since it uses less digits than its factorization.

42120332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132592 (or 1132585 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 42120332331 its reverse (13323302124), we get a palindrome (55443634455).

The spelling of 42120332331 in words is "forty-two billion, one hundred twenty million, three hundred thirty-two thousand, three hundred thirty-one".