10124203121 has 4 divisors (see below), whose sum is σ = 10136416500. Its totient is φ = 10111989744.

The previous prime is 10124203009. The next prime is 10124203183. The reversal of 10124203121 is 12130242101.

10124203121 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2404823521 + 7719379600 = 49039^2 + 87860^2 .

It is a cyclic number.

It is not a de Polignac number, because 10124203121 - 2³⁰ = 9050461297 is a prime.

It is a super-2 number, since 2×10124203121² (a number of 21 digits) contains 22 as substring.

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 10124203121.

It is not an unprimeable number, because it can be changed into a prime (10121203121) 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, 6105446 + ... + 6107103.

It is an arithmetic number, because the mean of its divisors is an integer number (2534104125).

Almost surely, 2^10124203121 is an apocalyptic number.

It is an amenable number.

10124203121 is a deficient number, since it is larger than the sum of its proper divisors (12213379).

10124203121 is an equidigital number, since it uses as much as digits as its factorization.

10124203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213378.

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

Adding to 10124203121 its reverse (12130242101), we get a palindrome (22254445222).

The spelling of 10124203121 in words is "ten billion, one hundred twenty-four million, two hundred three thousand, one hundred twenty-one".