10103123321 has 4 divisors (see below), whose sum is σ = 10103533812. Its totient is φ = 10102712832.

The previous prime is 10103123287. The next prime is 10103123339. The reversal of 10103123321 is 12332130101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2418672400 + 7684450921 = 49180^2 + 87661^2 .

It is a cyclic number.

It is not a de Polignac number, because 10103123321 - 2⁶ = 10103123257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10103123321.

It is not an unprimeable number, because it can be changed into a prime (10103123621) 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, 165800 + ... + 218393.

It is an arithmetic number, because the mean of its divisors is an integer number (2525883453).

Almost surely, 2^10103123321 is an apocalyptic number.

It is an amenable number.

10103123321 is a deficient number, since it is larger than the sum of its proper divisors (410491).

10103123321 is an equidigital number, since it uses as much as digits as its factorization.

10103123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410490.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10103123321 its reverse (12332130101), we get a palindrome (22435253422).

The spelling of 10103123321 in words is "ten billion, one hundred three million, one hundred twenty-three thousand, three hundred twenty-one".