10102421321 has 4 divisors (see below), whose sum is σ = 10103566212. Its totient is φ = 10101276432.

The previous prime is 10102421317. The next prime is 10102421359. The reversal of 10102421321 is 12312420101.

10102421321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12312420101 = 79 ⋅155853419.

It can be written as a sum of positive squares in 2 ways, for example, as 2281495225 + 7820926096 = 47765^2 + 88436^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102421321 - 2² = 10102421317 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 10102421321.

It is not an unprimeable number, because it can be changed into a prime (10102421311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559106 + ... + 576891.

It is an arithmetic number, because the mean of its divisors is an integer number (2525891553).

Almost surely, 2^10102421321 is an apocalyptic number.

It is an amenable number.

10102421321 is a deficient number, since it is larger than the sum of its proper divisors (1144891).

10102421321 is an equidigital number, since it uses as much as digits as its factorization.

10102421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144890.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10102421321 its reverse (12312420101), we get a palindrome (22414841422).

The spelling of 10102421321 in words is "ten billion, one hundred two million, four hundred twenty-one thousand, three hundred twenty-one".