123210133122011 has 4 divisors (see below), whose sum is σ = 132687835669872. Its totient is φ = 113732430574152.

The previous prime is 123210133121941. The next prime is 123210133122017. The reversal of 123210133122011 is 110221331012321.

It is a happy number.

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

It is not a de Polignac number, because 123210133122011 - 2³⁸ = 122935255215067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123210133122017) 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, 4738851273911 + ... + 4738851273936.

It is an arithmetic number, because the mean of its divisors is an integer number (33171958917468).

Almost surely, 2^{123210133122011} is an apocalyptic number.

123210133122011 is a deficient number, since it is larger than the sum of its proper divisors (9477702547861).

123210133122011 is an equidigital number, since it uses as much as digits as its factorization.

123210133122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9477702547860.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 123210133122011 its reverse (110221331012321), we get a palindrome (233431464134332).

The spelling of 123210133122011 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred thirty-three million, one hundred twenty-two thousand, eleven".