211121001323 has 4 divisors (see below), whose sum is σ = 211719078168. Its totient is φ = 210522924480.

The previous prime is 211121001317. The next prime is 211121001367. The reversal of 211121001323 is 323100121112.

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 211121001323 - 2⁸ = 211121001067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121001313) 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, 299037893 + ... + 299038598.

It is an arithmetic number, because the mean of its divisors is an integer number (52929769542).

Almost surely, 2^211121001323 is an apocalyptic number.

211121001323 is a deficient number, since it is larger than the sum of its proper divisors (598076845).

211121001323 is an equidigital number, since it uses as much as digits as its factorization.

211121001323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598076844.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211121001323 its reverse (323100121112), we get a palindrome (534221122435).

The spelling of 211121001323 in words is "two hundred eleven billion, one hundred twenty-one million, one thousand, three hundred twenty-three".