30312010213 has 16 divisors (see below), whose sum is σ = 31418138736. Its totient is φ = 29229990400.

The previous prime is 30312010207. The next prime is 30312010217. The reversal of 30312010213 is 31201021303.

It can be written as a sum of positive squares in 8 ways, for example, as 13500813249 + 16811196964 = 116193^2 + 129658^2 .

It is a cyclic number.

It is not a de Polignac number, because 30312010213 - 2⁹ = 30312009701 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 (30312010217) 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 15 ways as a sum of consecutive naturals, for example, 712695 + ... + 754027.

It is an arithmetic number, because the mean of its divisors is an integer number (1963633671).

Almost surely, 2^30312010213 is an apocalyptic number.

It is an amenable number.

30312010213 is a deficient number, since it is larger than the sum of its proper divisors (1106128523).

30312010213 is a wasteful number, since it uses less digits than its factorization.

30312010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41624.

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

Adding to 30312010213 its reverse (31201021303), we get a palindrome (61513031516).

The spelling of 30312010213 in words is "thirty billion, three hundred twelve million, ten thousand, two hundred thirteen".