30231332213 has 4 divisors (see below), whose sum is σ = 30247137228. Its totient is φ = 30215527200.

The previous prime is 30231332177. The next prime is 30231332239. The reversal of 30231332213 is 31223313203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31223313203 = 701 ⋅44541103.

It can be written as a sum of positive squares in 2 ways, for example, as 12737831044 + 17493501169 = 112862^2 + 132263^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231332213 - 2²⁰ = 30230283637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231332413) 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, 7899638 + ... + 7903463.

It is an arithmetic number, because the mean of its divisors is an integer number (7561784307).

Almost surely, 2^30231332213 is an apocalyptic number.

It is an amenable number.

30231332213 is a deficient number, since it is larger than the sum of its proper divisors (15805015).

30231332213 is a wasteful number, since it uses less digits than its factorization.

30231332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15805014.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30231332213 its reverse (31223313203), we get a palindrome (61454645416).

The spelling of 30231332213 in words is "thirty billion, two hundred thirty-one million, three hundred thirty-two thousand, two hundred thirteen".