212133024412013 has 4 divisors (see below), whose sum is σ = 212172213965628. Its totient is φ = 212093834858400.

The previous prime is 212133024411983. The next prime is 212133024412061. The reversal of 212133024412013 is 310214420331212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52546449725449 + 159586574686564 = 7248893^2 + 12632758^2 .

It is a cyclic number.

It is not a de Polignac number, because 212133024412013 - 2⁶ = 212133024411949 is a prime.

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 (212133024412063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19594768688 + ... + 19594779513.

It is an arithmetic number, because the mean of its divisors is an integer number (53043053491407).

Almost surely, 2^{212133024412013} is an apocalyptic number.

It is an amenable number.

212133024412013 is a deficient number, since it is larger than the sum of its proper divisors (39189553615).

212133024412013 is an equidigital number, since it uses as much as digits as its factorization.

212133024412013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39189553614.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 212133024412013 its reverse (310214420331212), we get a palindrome (522347444743225).

The spelling of 212133024412013 in words is "two hundred twelve trillion, one hundred thirty-three billion, twenty-four million, four hundred twelve thousand, thirteen".