30231111213 has 12 divisors (see below), whose sum is σ = 43718125308. Its totient is φ = 20130552000.

The previous prime is 30231111187. The next prime is 30231111221. The reversal of 30231111213 is 31211113203.

It can be written as a sum of positive squares in 2 ways, for example, as 22404701124 + 7826410089 = 149682^2 + 88467^2 .

It is not a de Polignac number, because 30231111213 - 2¹⁷ = 30230980141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231101213) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1952038 + ... + 1967463.

It is an arithmetic number, because the mean of its divisors is an integer number (3643177109).

Almost surely, 2^30231111213 is an apocalyptic number.

It is an amenable number.

30231111213 is a deficient number, since it is larger than the sum of its proper divisors (13487014095).

30231111213 is a wasteful number, since it uses less digits than its factorization.

30231111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920364 (or 3920361 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30231111213 its reverse (31211113203), we get a palindrome (61442224416).

The spelling of 30231111213 in words is "thirty billion, two hundred thirty-one million, one hundred eleven thousand, two hundred thirteen".