30312112213 has 8 divisors (see below), whose sum is σ = 31912380800. Its totient is φ = 28712333088.

The previous prime is 30312112199. The next prime is 30312112219. The reversal of 30312112213 is 31221121303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30312112213 - 2²¹ = 30310015061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312112219) 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 7 ways as a sum of consecutive naturals, for example, 8353 + ... + 246361.

It is an arithmetic number, because the mean of its divisors is an integer number (3989047600).

Almost surely, 2^30312112213 is an apocalyptic number.

It is an amenable number.

30312112213 is a deficient number, since it is larger than the sum of its proper divisors (1600268587).

30312112213 is a wasteful number, since it uses less digits than its factorization.

30312112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244731.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30312112213 its reverse (31221121303), we get a palindrome (61533233516).

The spelling of 30312112213 in words is "thirty billion, three hundred twelve million, one hundred twelve thousand, two hundred thirteen".