123220133133 has 16 divisors (see below), whose sum is σ = 166043845440. Its totient is φ = 81273798144.

The previous prime is 123220133129. The next prime is 123220133137. The reversal of 123220133133 is 331331022321.

It is an interprime number because it is at equal distance from previous prime (123220133129) and next prime (123220133137).

It is not a de Polignac number, because 123220133133 - 2² = 123220133129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220133137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52516 + ... + 499197.

It is an arithmetic number, because the mean of its divisors is an integer number (10377740340).

Almost surely, 2^123220133133 is an apocalyptic number.

It is an amenable number.

123220133133 is a deficient number, since it is larger than the sum of its proper divisors (42823712307).

123220133133 is a wasteful number, since it uses less digits than its factorization.

123220133133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552508.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123220133133 its reverse (331331022321), we get a palindrome (454551155454).

The spelling of 123220133133 in words is "one hundred twenty-three billion, two hundred twenty million, one hundred thirty-three thousand, one hundred thirty-three".