123210233211 has 16 divisors (see below), whose sum is σ = 181698807584. Its totient is φ = 73772446464.

The previous prime is 123210233191. The next prime is 123210233219. The reversal of 123210233211 is 112332012321.

It is not a de Polignac number, because 123210233211 - 2¹⁸ = 123209971067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123210233219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42690946 + ... + 42693831.

It is an arithmetic number, because the mean of its divisors is an integer number (11356175474).

Almost surely, 2^123210233211 is an apocalyptic number.

123210233211 is a deficient number, since it is larger than the sum of its proper divisors (58488574373).

123210233211 is a wasteful number, since it uses less digits than its factorization.

123210233211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85384830.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123210233211 its reverse (112332012321), we get a palindrome (235542245532).

The spelling of 123210233211 in words is "one hundred twenty-three billion, two hundred ten million, two hundred thirty-three thousand, two hundred eleven".