123303140321 has 4 divisors (see below), whose sum is σ = 123794388144. Its totient is φ = 122811892500.

The previous prime is 123303140299. The next prime is 123303140333. The reversal of 123303140321 is 123041303321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123303140321 - 2³⁰ = 122229398497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123303140381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245623535 + ... + 245624036.

It is an arithmetic number, because the mean of its divisors is an integer number (30948597036).

Almost surely, 2^123303140321 is an apocalyptic number.

It is an amenable number.

123303140321 is a deficient number, since it is larger than the sum of its proper divisors (491247823).

123303140321 is an equidigital number, since it uses as much as digits as its factorization.

123303140321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491247822.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123303140321 its reverse (123041303321), we get a palindrome (246344443642).

The spelling of 123303140321 in words is "one hundred twenty-three billion, three hundred three million, one hundred forty thousand, three hundred twenty-one".