123321212133 has 96 divisors (see below), whose sum is σ = 202950086400. Its totient is φ = 65226940416.

The previous prime is 123321212093. The next prime is 123321212153. The reversal of 123321212133 is 331212123321.

It is not a de Polignac number, because 123321212133 - 2⁸ = 123321211877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123321212153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 123691791 + ... + 123692787.

It is an arithmetic number, because the mean of its divisors is an integer number (2114063400).

Almost surely, 2^123321212133 is an apocalyptic number.

It is an amenable number.

123321212133 is a deficient number, since it is larger than the sum of its proper divisors (79628874267).

123321212133 is a wasteful number, since it uses less digits than its factorization.

123321212133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1342 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 123321212133 its reverse (331212123321), we get a palindrome (454533335454).

The spelling of 123321212133 in words is "one hundred twenty-three billion, three hundred twenty-one million, two hundred twelve thousand, one hundred thirty-three".