10102124321 has 4 divisors (see below), whose sum is σ = 10102329600. Its totient is φ = 10101919044.

The previous prime is 10102124293. The next prime is 10102124327. The reversal of 10102124321 is 12342120101.

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: 12342120101 = 877 ⋅14073113.

It is a cyclic number.

It is not a de Polignac number, because 10102124321 - 2¹⁴ = 10102107937 is a prime.

It is a super-2 number, since 2×10102124321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10102124321.

It is not an unprimeable number, because it can be changed into a prime (10102124327) 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, 20120 + ... + 143558.

It is an arithmetic number, because the mean of its divisors is an integer number (2525582400).

Almost surely, 2^10102124321 is an apocalyptic number.

It is an amenable number.

10102124321 is a deficient number, since it is larger than the sum of its proper divisors (205279).

10102124321 is an equidigital number, since it uses as much as digits as its factorization.

10102124321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205278.

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

Adding to 10102124321 its reverse (12342120101), we get a palindrome (22444244422).

The spelling of 10102124321 in words is "ten billion, one hundred two million, one hundred twenty-four thousand, three hundred twenty-one".