42320020034 has 4 divisors (see below), whose sum is σ = 63480030054. Its totient is φ = 21160010016.

The previous prime is 42320020009. The next prime is 42320020037. The reversal of 42320020034 is 43002002324.

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

It can be written as a sum of positive squares in only one way, i.e., 29820109225 + 12499910809 = 172685^2 + 111803^2 .

It is a super-2 number, since 2×42320020034² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42320019988 and 42320020015.

It is not an unprimeable number, because it can be changed into a prime (42320020037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580005007 + ... + 10580005010.

Almost surely, 2^42320020034 is an apocalyptic number.

42320020034 is a deficient number, since it is larger than the sum of its proper divisors (21160010020).

42320020034 is a wasteful number, since it uses less digits than its factorization.

42320020034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21160010019.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 42320020034 its reverse (43002002324), we get a palindrome (85322022358).

The spelling of 42320020034 in words is "forty-two billion, three hundred twenty million, twenty thousand, thirty-four".