30000020331 has 4 divisors (see below), whose sum is σ = 40000027112. Its totient is φ = 20000013552.

The previous prime is 30000020273. The next prime is 30000020363. The reversal of 30000020331 is 13302000003.

It is a happy number.

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

It is not a de Polignac number, because 30000020331 - 2¹⁰ = 30000019307 is a prime.

It is a super-2 number, since 2×30000020331² (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 (30000020371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000003386 + ... + 5000003391.

It is an arithmetic number, because the mean of its divisors is an integer number (10000006778).

Almost surely, 2^30000020331 is an apocalyptic number.

30000020331 is a deficient number, since it is larger than the sum of its proper divisors (10000006781).

30000020331 is a wasteful number, since it uses less digits than its factorization.

30000020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000006780.

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 30000020331 its reverse (13302000003), we get a palindrome (43302020334).

The spelling of 30000020331 in words is "thirty billion, twenty thousand, three hundred thirty-one".