123321320131 has 8 divisors (see below), whose sum is σ = 127326173184. Its totient is φ = 119318138760.

The previous prime is 123321320119. The next prime is 123321320147. The reversal of 123321320131 is 131023123321.

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 123321320131 - 2³⁵ = 88961581763 is a prime.

It is a super-2 number, since 2×123321320131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123321327131) 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, 267115 + ... + 563908.

It is an arithmetic number, because the mean of its divisors is an integer number (15915771648).

Almost surely, 2^123321320131 is an apocalyptic number.

123321320131 is a deficient number, since it is larger than the sum of its proper divisors (4004853053).

123321320131 is an equidigital number, since it uses as much as digits as its factorization.

123321320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835841.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123321320131 its reverse (131023123321), we get a palindrome (254344443452).

The spelling of 123321320131 in words is "one hundred twenty-three billion, three hundred twenty-one million, three hundred twenty thousand, one hundred thirty-one".