123320621133 has 24 divisors (see below), whose sum is σ = 188045488800. Its totient is φ = 77662213344.

The previous prime is 123320621117. The next prime is 123320621153. The reversal of 123320621133 is 331126023321.

123320621133 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 2 + 0 + 621 + 1 + 33 = 666.

It is not a de Polignac number, because 123320621133 - 2⁴ = 123320621117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123320621097 and 123320621106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123320621153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 979818 + ... + 1098491.

It is an arithmetic number, because the mean of its divisors is an integer number (7835228700).

Almost surely, 2^123320621133 is an apocalyptic number.

It is an amenable number.

123320621133 is a deficient number, since it is larger than the sum of its proper divisors (64724867667).

123320621133 is a wasteful number, since it uses less digits than its factorization.

123320621133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078681 (or 2078678 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 123320621133 its reverse (331126023321), we get a palindrome (454446644454).

The spelling of 123320621133 in words is "one hundred twenty-three billion, three hundred twenty million, six hundred twenty-one thousand, one hundred thirty-three".