10220123321 has 4 divisors (see below), whose sum is σ = 10221526644. Its totient is φ = 10218720000.

The previous prime is 10220123317. The next prime is 10220123357. The reversal of 10220123321 is 12332102201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12332102201 = 151 ⋅81669551.

It can be written as a sum of positive squares in 2 ways, for example, as 4126135225 + 6093988096 = 64235^2 + 78064^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220123321 - 2² = 10220123317 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 10220123321.

It is not an unprimeable number, because it can be changed into a prime (10220123521) 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, 690680 + ... + 705321.

It is an arithmetic number, because the mean of its divisors is an integer number (2555381661).

Almost surely, 2^10220123321 is an apocalyptic number.

It is an amenable number.

10220123321 is a deficient number, since it is larger than the sum of its proper divisors (1403323).

10220123321 is an equidigital number, since it uses as much as digits as its factorization.

10220123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403322.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10220123321 its reverse (12332102201), we get a palindrome (22552225522).

The spelling of 10220123321 in words is "ten billion, two hundred twenty million, one hundred twenty-three thousand, three hundred twenty-one".