30012130331 has 4 divisors (see below), whose sum is σ = 30434836464. Its totient is φ = 29589424200.

The previous prime is 30012130271. The next prime is 30012130387. The reversal of 30012130331 is 13303121003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30012130331 is a prime.

It is a super-2 number, since 2×30012130331² (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 (30012130931) 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, 211352960 + ... + 211353101.

It is an arithmetic number, because the mean of its divisors is an integer number (7608709116).

Almost surely, 2^30012130331 is an apocalyptic number.

30012130331 is a deficient number, since it is larger than the sum of its proper divisors (422706133).

30012130331 is an equidigital number, since it uses as much as digits as its factorization.

30012130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422706132.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30012130331 its reverse (13303121003), we get a palindrome (43315251334).

The spelling of 30012130331 in words is "thirty billion, twelve million, one hundred thirty thousand, three hundred thirty-one".