10103321021 has 8 divisors (see below), whose sum is σ = 10558905984. Its totient is φ = 9649095280.

The previous prime is 10103321009. The next prime is 10103321099. The reversal of 10103321021 is 12012330101.

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 10103321021 - 2⁶ = 10103320957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10103320987 and 10103321005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10103321621) 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, 324590 + ... + 354351.

It is an arithmetic number, because the mean of its divisors is an integer number (1319863248).

Almost surely, 2^10103321021 is an apocalyptic number.

It is an amenable number.

10103321021 is a deficient number, since it is larger than the sum of its proper divisors (455584963).

10103321021 is an equidigital number, since it uses as much as digits as its factorization.

10103321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679611.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10103321021 its reverse (12012330101), we get a palindrome (22115651122).

The spelling of 10103321021 in words is "ten billion, one hundred three million, three hundred twenty-one thousand, twenty-one".