123133201133 has 4 divisors (see below), whose sum is σ = 123134016060. Its totient is φ = 123132386208.

The previous prime is 123133201123. The next prime is 123133201159. The reversal of 123133201133 is 331102331321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 331102331321 = 151 ⋅2192730671.

It can be written as a sum of positive squares in 2 ways, for example, as 34923013129 + 88210188004 = 186877^2 + 297002^2 .

It is a cyclic number.

It is not a de Polignac number, because 123133201133 - 2¹⁰ = 123133200109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123133201099 and 123133201108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133201123) 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, 106928 + ... + 507641.

It is an arithmetic number, because the mean of its divisors is an integer number (30783504015).

Almost surely, 2^123133201133 is an apocalyptic number.

It is an amenable number.

123133201133 is a deficient number, since it is larger than the sum of its proper divisors (814927).

123133201133 is an equidigital number, since it uses as much as digits as its factorization.

123133201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814926.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123133201133 its reverse (331102331321), we get a palindrome (454235532454).

The spelling of 123133201133 in words is "one hundred twenty-three billion, one hundred thirty-three million, two hundred one thousand, one hundred thirty-three".