123310110211 has 4 divisors (see below), whose sum is σ = 123312532624. Its totient is φ = 123307687800.

The previous prime is 123310110199. The next prime is 123310110299. The reversal of 123310110211 is 112011013321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112011013321 = 9013 ⋅12427717.

It is a cyclic number.

It is not a de Polignac number, because 123310110211 - 2⁵ = 123310110179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123310114211) 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, 1133175 + ... + 1237216.

It is an arithmetic number, because the mean of its divisors is an integer number (30828133156).

Almost surely, 2^123310110211 is an apocalyptic number.

123310110211 is a deficient number, since it is larger than the sum of its proper divisors (2422413).

123310110211 is an equidigital number, since it uses as much as digits as its factorization.

123310110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422412.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 123310110211 its reverse (112011013321), we get a palindrome (235321123532).

The spelling of 123310110211 in words is "one hundred twenty-three billion, three hundred ten million, one hundred ten thousand, two hundred eleven".