212030312013 has 20 divisors (see below), whose sum is σ = 341100997468. Its totient is φ = 130480191360.

The previous prime is 212030312003. The next prime is 212030312047. The reversal of 212030312013 is 310213030212.

It can be written as a sum of positive squares in 2 ways, for example, as 11816124804 + 200214187209 = 108702^2 + 447453^2 .

It is not a de Polignac number, because 212030312013 - 2⁶ = 212030311949 is a prime.

It is a super-2 number, since 2×212030312013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030312003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100678108 + ... + 100680213.

Almost surely, 2^212030312013 is an apocalyptic number.

It is an amenable number.

212030312013 is a deficient number, since it is larger than the sum of its proper divisors (129070685455).

212030312013 is a wasteful number, since it uses less digits than its factorization.

212030312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201358346 (or 201358337 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212030312013 its reverse (310213030212), we get a palindrome (522243342225).

The spelling of 212030312013 in words is "two hundred twelve billion, thirty million, three hundred twelve thousand, thirteen".