123100133311 has 4 divisors (see below), whose sum is σ = 123169176112. Its totient is φ = 123031090512.

The previous prime is 123100133297. The next prime is 123100133327. The reversal of 123100133311 is 113331001321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113331001321 = 116639 ⋅971639.

It is a cyclic number.

It is not a de Polignac number, because 123100133311 - 2²³ = 123091744703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100133411) 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, 34518726 + ... + 34522291.

It is an arithmetic number, because the mean of its divisors is an integer number (30792294028).

Almost surely, 2^123100133311 is an apocalyptic number.

123100133311 is a deficient number, since it is larger than the sum of its proper divisors (69042801).

123100133311 is an equidigital number, since it uses as much as digits as its factorization.

123100133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69042800.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 123100133311 its reverse (113331001321), we get a palindrome (236431134632).

The spelling of 123100133311 in words is "one hundred twenty-three billion, one hundred million, one hundred thirty-three thousand, three hundred eleven".