10202112321 has 4 divisors (see below), whose sum is σ = 13602816432. Its totient is φ = 6801408212.

The previous prime is 10202112317. The next prime is 10202112353. The reversal of 10202112321 is 12321120201.

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 10202112321 - 2² = 10202112317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10202112321.

It is not an unprimeable number, because it can be changed into a prime (10202112521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700352051 + ... + 1700352056.

It is an arithmetic number, because the mean of its divisors is an integer number (3400704108).

Almost surely, 2^10202112321 is an apocalyptic number.

It is an amenable number.

10202112321 is a deficient number, since it is larger than the sum of its proper divisors (3400704111).

10202112321 is an equidigital number, since it uses as much as digits as its factorization.

10202112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400704110.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10202112321 its reverse (12321120201), we get a palindrome (22523232522).

The spelling of 10202112321 in words is "ten billion, two hundred two million, one hundred twelve thousand, three hundred twenty-one".