211122321323 has 4 divisors (see below), whose sum is σ = 211125318960. Its totient is φ = 211119323688.

The previous prime is 211122321317. The next prime is 211122321329. The reversal of 211122321323 is 323123221112.

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

It is an interprime number because it is at equal distance from previous prime (211122321317) and next prime (211122321329).

It is a cyclic number.

It is not a de Polignac number, because 211122321323 - 2⁴ = 211122321307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122321329) 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, 1390568 + ... + 1534901.

It is an arithmetic number, because the mean of its divisors is an integer number (52781329740).

Almost surely, 2^211122321323 is an apocalyptic number.

211122321323 is a deficient number, since it is larger than the sum of its proper divisors (2997637).

211122321323 is an equidigital number, since it uses as much as digits as its factorization.

211122321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997636.

The product of its digits is 864, while the sum is 23.

Adding to 211122321323 its reverse (323123221112), we get a palindrome (534245542435).

The spelling of 211122321323 in words is "two hundred eleven billion, one hundred twenty-two million, three hundred twenty-one thousand, three hundred twenty-three".