42320031133 has 4 divisors (see below), whose sum is σ = 42470636508. Its totient is φ = 42169425760.

The previous prime is 42320031113. The next prime is 42320031137. The reversal of 42320031133 is 33113002324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9351276804 + 32968754329 = 96702^2 + 181573^2 .

It is a cyclic number.

It is not a de Polignac number, because 42320031133 - 2⁵ = 42320031101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42320031137) 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, 75302266 + ... + 75302827.

It is an arithmetic number, because the mean of its divisors is an integer number (10617659127).

Almost surely, 2^42320031133 is an apocalyptic number.

It is an amenable number.

42320031133 is a deficient number, since it is larger than the sum of its proper divisors (150605375).

42320031133 is a wasteful number, since it uses less digits than its factorization.

42320031133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150605374.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 42320031133 its reverse (33113002324), we get a palindrome (75433033457).

The spelling of 42320031133 in words is "forty-two billion, three hundred twenty million, thirty-one thousand, one hundred thirty-three".