30320120042 has 16 divisors (see below), whose sum is σ = 45654440832. Its totient is φ = 15102030240.

The previous prime is 30320120027. The next prime is 30320120063. The reversal of 30320120042 is 24002102303.

It is a super-2 number, since 2×30320120042² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30320120042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135598 + ... + 1161990.

It is an arithmetic number, because the mean of its divisors is an integer number (2853402552).

Almost surely, 2^30320120042 is an apocalyptic number.

30320120042 is a deficient number, since it is larger than the sum of its proper divisors (15334320790).

30320120042 is a wasteful number, since it uses less digits than its factorization.

30320120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28573.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30320120042 its reverse (24002102303), we get a palindrome (54322222345).

The spelling of 30320120042 in words is "thirty billion, three hundred twenty million, one hundred twenty thousand, forty-two".