30312030213 has 12 divisors (see below), whose sum is σ = 44400721248. Its totient is φ = 19923399720.

The previous prime is 30312030193. The next prime is 30312030223. The reversal of 30312030213 is 31203021303.

30312030213 is a `hidden beast` number, since 303 + 120 + 30 + 213 = 666.

It is not a de Polignac number, because 30312030213 - 2⁹ = 30312029701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312030223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23717695 + ... + 23718972.

It is an arithmetic number, because the mean of its divisors is an integer number (3700060104).

Almost surely, 2^30312030213 is an apocalyptic number.

It is an amenable number.

30312030213 is a deficient number, since it is larger than the sum of its proper divisors (14088691035).

30312030213 is a wasteful number, since it uses less digits than its factorization.

30312030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47436744 (or 47436741 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30312030213 its reverse (31203021303), we get a palindrome (61515051516).

It can be divided in two parts, 303120 and 30213, that added together give a palindrome (333333).

The spelling of 30312030213 in words is "thirty billion, three hundred twelve million, thirty thousand, two hundred thirteen".