10121202123 has 4 divisors (see below), whose sum is σ = 13494936168. Its totient is φ = 6747468080.

The previous prime is 10121202109. The next prime is 10121202139. The reversal of 10121202123 is 32120212101.

10121202123 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 is a cyclic number.

It is not a de Polignac number, because 10121202123 - 2⁴ = 10121202107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10121202103) 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, 1686867018 + ... + 1686867023.

It is an arithmetic number, because the mean of its divisors is an integer number (3373734042).

Almost surely, 2^10121202123 is an apocalyptic number.

10121202123 is a deficient number, since it is larger than the sum of its proper divisors (3373734045).

10121202123 is an equidigital number, since it uses as much as digits as its factorization.

10121202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373734044.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10121202123 its reverse (32120212101), we get a palindrome (42241414224).

The spelling of 10121202123 in words is "ten billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-three".