212123113010013 has 4 divisors (see below), whose sum is σ = 282830817346688. Its totient is φ = 141415408673340.

The previous prime is 212123113009987. The next prime is 212123113010021. The reversal of 212123113010013 is 310010311321212.

212123113010013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212123113010013 - 2⁸ = 212123113009757 is a prime.

It is a super-2 number, since 2×212123113010013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123113011013) 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, 35353852168333 + ... + 35353852168338.

It is an arithmetic number, because the mean of its divisors is an integer number (70707704336672).

Almost surely, 2^{212123113010013} is an apocalyptic number.

It is an amenable number.

212123113010013 is a deficient number, since it is larger than the sum of its proper divisors (70707704336675).

212123113010013 is an equidigital number, since it uses as much as digits as its factorization.

212123113010013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70707704336674.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 212123113010013 its reverse (310010311321212), we get a palindrome (522133424331225).

The spelling of 212123113010013 in words is "two hundred twelve trillion, one hundred twenty-three billion, one hundred thirteen million, ten thousand, thirteen".