10124021321 has 4 divisors (see below), whose sum is σ = 10174896000. Its totient is φ = 10073146644.

The previous prime is 10124021269. The next prime is 10124021333. The reversal of 10124021321 is 12312042101.

10124021321 is digitally balanced in base 3, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12312042101 = 167 ⋅73724803.

It is a cyclic number.

It is not a de Polignac number, because 10124021321 - 2¹⁴ = 10124004937 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 10124021321.

It is not an unprimeable number, because it can be changed into a prime (10124021371) 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, 25437041 + ... + 25437438.

It is an arithmetic number, because the mean of its divisors is an integer number (2543724000).

Almost surely, 2^10124021321 is an apocalyptic number.

It is an amenable number.

10124021321 is a deficient number, since it is larger than the sum of its proper divisors (50874679).

10124021321 is an equidigital number, since it uses as much as digits as its factorization.

10124021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50874678.

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

Adding to 10124021321 its reverse (12312042101), we get a palindrome (22436063422).

The spelling of 10124021321 in words is "ten billion, one hundred twenty-four million, twenty-one thousand, three hundred twenty-one".