212113231121323 has 4 divisors (see below), whose sum is σ = 242415121281520. Its totient is φ = 181811340961128.

The previous prime is 212113231121291. The next prime is 212113231121327. The reversal of 212113231121323 is 323121132311212.

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

It is a cyclic number.

It is not a de Polignac number, because 212113231121323 - 2⁵ = 212113231121291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212113231121291 and 212113231121300.

It is not an unprimeable number, because it can be changed into a prime (212113231121327) 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, 15150945080088 + ... + 15150945080101.

It is an arithmetic number, because the mean of its divisors is an integer number (60603780320380).

Almost surely, 2^{212113231121323} is an apocalyptic number.

212113231121323 is a deficient number, since it is larger than the sum of its proper divisors (30301890160197).

212113231121323 is an equidigital number, since it uses as much as digits as its factorization.

212113231121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30301890160196.

The product of its digits is 2592, while the sum is 28.

Adding to 212113231121323 its reverse (323121132311212), we get a palindrome (535234363432535).

The spelling of 212113231121323 in words is "two hundred twelve trillion, one hundred thirteen billion, two hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty-three".