103221004321 has 4 divisors (see below), whose sum is σ = 103221688000. Its totient is φ = 103220320644.

The previous prime is 103221004297. The next prime is 103221004399. The reversal of 103221004321 is 123400122301.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 123400122301 = 19 ⋅6494743279.

It is a cyclic number.

It is not a de Polignac number, because 103221004321 - 2⁷ = 103221004193 is a prime.

It is a super-3 number, since 3×103221004321³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103221004121) 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, 4221 + ... + 454378.

It is an arithmetic number, because the mean of its divisors is an integer number (25805422000).

Almost surely, 2^103221004321 is an apocalyptic number.

It is an amenable number.

103221004321 is a deficient number, since it is larger than the sum of its proper divisors (683679).

103221004321 is an equidigital number, since it uses as much as digits as its factorization.

103221004321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683678.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 103221004321 its reverse (123400122301), we get a palindrome (226621126622).

The spelling of 103221004321 in words is "one hundred three billion, two hundred twenty-one million, four thousand, three hundred twenty-one".