30004042531 has 4 divisors (see below), whose sum is σ = 30100518864. Its totient is φ = 29907566200.

The previous prime is 30004042529. The next prime is 30004042567. The reversal of 30004042531 is 13524040003.

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

It is a cyclic number.

It is not a de Polignac number, because 30004042531 - 2¹ = 30004042529 is a prime.

It is a super-2 number, since 2×30004042531² (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 (30004042931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48237700 + ... + 48238321.

It is an arithmetic number, because the mean of its divisors is an integer number (7525129716).

Almost surely, 2^30004042531 is an apocalyptic number.

30004042531 is a deficient number, since it is larger than the sum of its proper divisors (96476333).

30004042531 is an equidigital number, since it uses as much as digits as its factorization.

30004042531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96476332.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 30004042531 its reverse (13524040003), we get a palindrome (43528082534).

The spelling of 30004042531 in words is "thirty billion, four million, forty-two thousand, five hundred thirty-one".