123211322311 has 24 divisors (see below), whose sum is σ = 154887692960. Its totient is φ = 95940694080.

The previous prime is 123211322291. The next prime is 123211322317. The reversal of 123211322311 is 113223112321.

It is not a de Polignac number, because 123211322311 - 2⁵ = 123211322279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123211322317) 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, 1159465 + ... + 1261261.

Almost surely, 2^123211322311 is an apocalyptic number.

123211322311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123211322311 is a deficient number, since it is larger than the sum of its proper divisors (31676370649).

123211322311 is a wasteful number, since it uses less digits than its factorization.

123211322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103255 (or 103244 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 123211322311 its reverse (113223112321), we get a palindrome (236434434632).

The spelling of 123211322311 in words is "one hundred twenty-three billion, two hundred eleven million, three hundred twenty-two thousand, three hundred eleven".