10121343125 has 20 divisors (see below), whose sum is σ = 13391622684. Its totient is φ = 7620768000.

The previous prime is 10121343121. The next prime is 10121343137. The reversal of 10121343125 is 52134312101.

10121343125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 10 ways, for example, as 8219598244 + 1901744881 = 90662^2 + 43609^2 .

It is not a de Polignac number, because 10121343125 - 2² = 10121343121 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 10121343125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121343121) 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 19 ways as a sum of consecutive naturals, for example, 465674 + ... + 486923.

Almost surely, 2^10121343125 is an apocalyptic number.

It is an amenable number.

10121343125 is a deficient number, since it is larger than the sum of its proper divisors (3270279559).

10121343125 is an frugal number, since it uses more digits than its factorization.

10121343125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952634 (or 952619 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 10121343125 its reverse (52134312101), we get a palindrome (62255655226).

The spelling of 10121343125 in words is "ten billion, one hundred twenty-one million, three hundred forty-three thousand, one hundred twenty-five".