11212102121323 has 4 divisors (see below), whose sum is σ = 11472848682328. Its totient is φ = 10951355560320.

The previous prime is 11212102121309. The next prime is 11212102121329. The reversal of 11212102121323 is 32312120121211.

It is a happy number.

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 11212102121323 - 2⁹ = 11212102120811 is a prime.

It is a super-2 number, since 2×11212102121323² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212102121294 and 11212102121303.

It is not an unprimeable number, because it can be changed into a prime (11212102121329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130373280438 + ... + 130373280523.

It is an arithmetic number, because the mean of its divisors is an integer number (2868212170582).

Almost surely, 2^{11212102121323} is an apocalyptic number.

11212102121323 is a deficient number, since it is larger than the sum of its proper divisors (260746561005).

11212102121323 is an equidigital number, since it uses as much as digits as its factorization.

11212102121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260746561004.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11212102121323 its reverse (32312120121211), we get a palindrome (43524222242534).

The spelling of 11212102121323 in words is "eleven trillion, two hundred twelve billion, one hundred two million, one hundred twenty-one thousand, three hundred twenty-three".