123310122211 has 4 divisors (see below), whose sum is σ = 123789928392. Its totient is φ = 122830316032.

The previous prime is 123310122197. The next prime is 123310122239. The reversal of 123310122211 is 112221013321.

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

It is a cyclic number.

It is not a de Polignac number, because 123310122211 - 2⁷ = 123310122083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123310128211) 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, 239902705 + ... + 239903218.

It is an arithmetic number, because the mean of its divisors is an integer number (30947482098).

Almost surely, 2^123310122211 is an apocalyptic number.

123310122211 is a deficient number, since it is larger than the sum of its proper divisors (479806181).

123310122211 is an equidigital number, since it uses as much as digits as its factorization.

123310122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479806180.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123310122211 its reverse (112221013321), we get a palindrome (235531135532).

The spelling of 123310122211 in words is "one hundred twenty-three billion, three hundred ten million, one hundred twenty-two thousand, two hundred eleven".