30212031013 has 4 divisors (see below), whose sum is σ = 30782069388. Its totient is φ = 29641992640.

The previous prime is 30212031001. The next prime is 30212031061. The reversal of 30212031013 is 31013021203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31013021203 = 8737 ⋅3549619.

It can be written as a sum of positive squares in 2 ways, for example, as 22837858884 + 7374172129 = 151122^2 + 85873^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30212031013 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 (30212032013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285019108 + ... + 285019213.

It is an arithmetic number, because the mean of its divisors is an integer number (7695517347).

Almost surely, 2^30212031013 is an apocalyptic number.

It is an amenable number.

30212031013 is a deficient number, since it is larger than the sum of its proper divisors (570038375).

30212031013 is an equidigital number, since it uses as much as digits as its factorization.

30212031013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570038374.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30212031013 its reverse (31013021203), we get a palindrome (61225052216).

The spelling of 30212031013 in words is "thirty billion, two hundred twelve million, thirty-one thousand, thirteen".