3123102103221 has 4 divisors (see below), whose sum is σ = 4164136137632. Its totient is φ = 2082068068812.

The previous prime is 3123102103211. The next prime is 3123102103243. The reversal of 3123102103221 is 1223012013213.

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 not a de Polignac number, because 3123102103221 - 2⁹ = 3123102102709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123102103201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520517017201 + ... + 520517017206.

It is an arithmetic number, because the mean of its divisors is an integer number (1041034034408).

Almost surely, 2^{3123102103221} is an apocalyptic number.

It is an amenable number.

3123102103221 is a deficient number, since it is larger than the sum of its proper divisors (1041034034411).

3123102103221 is a wasteful number, since it uses less digits than its factorization.

3123102103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041034034410.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3123102103221 its reverse (1223012013213), we get a palindrome (4346114116434).

The spelling of 3123102103221 in words is "three trillion, one hundred twenty-three billion, one hundred two million, one hundred three thousand, two hundred twenty-one".