123001002131321 has 8 divisors (see below), whose sum is σ = 123193173559680. Its totient is φ = 122808837067488.

The previous prime is 123001002131291. The next prime is 123001002131341. The reversal of 123001002131321 is 123131200100321.

It is a happy number.

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 123001002131321 - 2⁶ = 123001002131257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123001002131293 and 123001002131302.

It is not an unprimeable number, because it can be changed into a prime (123001002131341) 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, 37854245 + ... + 40974941.

It is an arithmetic number, because the mean of its divisors is an integer number (15399146694960).

Almost surely, 2^{123001002131321} is an apocalyptic number.

It is an amenable number.

123001002131321 is a deficient number, since it is larger than the sum of its proper divisors (192171428359).

123001002131321 is an equidigital number, since it uses as much as digits as its factorization.

123001002131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182263.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123001002131321 its reverse (123131200100321), we get a palindrome (246132202231642).

The spelling of 123001002131321 in words is "one hundred twenty-three trillion, one billion, two million, one hundred thirty-one thousand, three hundred twenty-one".