10213123321 has 4 divisors (see below), whose sum is σ = 10542578944. Its totient is φ = 9883667700.

The previous prime is 10213123313. The next prime is 10213123339. The reversal of 10213123321 is 12332131201.

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 10213123321 - 2³ = 10213123313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10213123381) 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, 164727765 + ... + 164727826.

It is an arithmetic number, because the mean of its divisors is an integer number (2635644736).

Almost surely, 2^10213123321 is an apocalyptic number.

It is an amenable number.

10213123321 is a deficient number, since it is larger than the sum of its proper divisors (329455623).

10213123321 is an equidigital number, since it uses as much as digits as its factorization.

10213123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329455622.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10213123321 its reverse (12332131201), we get a palindrome (22545254522).

The spelling of 10213123321 in words is "ten billion, two hundred thirteen million, one hundred twenty-three thousand, three hundred twenty-one".