123320131131121 has 8 divisors (see below), whose sum is σ = 123488979848640. Its totient is φ = 123151284072912.

The previous prime is 123320131131103. The next prime is 123320131131137. The reversal of 123320131131121 is 121131131023321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123320131131121 - 2⁷ = 123320131130993 is a prime.

It is a super-3 number, since 3×123320131131121³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123320131131181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259965570 + ... + 260439508.

It is an arithmetic number, because the mean of its divisors is an integer number (15436122481080).

Almost surely, 2^{123320131131121} is an apocalyptic number.

It is an amenable number.

123320131131121 is a deficient number, since it is larger than the sum of its proper divisors (168848717519).

123320131131121 is an equidigital number, since it uses as much as digits as its factorization.

123320131131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829655.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 123320131131121 its reverse (121131131023321), we get a palindrome (244451262154442).

The spelling of 123320131131121 in words is "one hundred twenty-three trillion, three hundred twenty billion, one hundred thirty-one million, one hundred thirty-one thousand, one hundred twenty-one".