210211111323 has 24 divisors (see below), whose sum is σ = 307091676528. Its totient is φ = 138549906432.

The previous prime is 210211111307. The next prime is 210211111343. The reversal of 210211111323 is 323111112012.

210211111323 is a `hidden beast` number, since 21 + 0 + 211 + 111 + 323 = 666.

It is not a de Polignac number, because 210211111323 - 2⁴ = 210211111307 is a prime.

It is a super-2 number, since 2×210211111323² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210211111296 and 210211111305.

It is not an unprimeable number, because it can be changed into a prime (210211111303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 705636 + ... + 958302.

It is an arithmetic number, because the mean of its divisors is an integer number (12795486522).

Almost surely, 2^210211111323 is an apocalyptic number.

210211111323 is a deficient number, since it is larger than the sum of its proper divisors (96880565205).

210211111323 is a wasteful number, since it uses less digits than its factorization.

210211111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253723 (or 253720 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 210211111323 its reverse (323111112012), we get a palindrome (533322223335).

The spelling of 210211111323 in words is "two hundred ten billion, two hundred eleven million, one hundred eleven thousand, three hundred twenty-three".