10013121210123 has 24 divisors (see below), whose sum is σ = 14534331102720. Its totient is φ = 6642731200560.

The previous prime is 10013121210109. The next prime is 10013121210133. The reversal of 10013121210123 is 32101212131001.

It is not a de Polignac number, because 10013121210123 - 2⁴ = 10013121210107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10013121210096 and 10013121210105.

It is not an unprimeable number, because it can be changed into a prime (10013121210133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165453 + ... + 4478126.

It is an arithmetic number, because the mean of its divisors is an integer number (605597129280).

Almost surely, 2^{10013121210123} is an apocalyptic number.

10013121210123 is a deficient number, since it is larger than the sum of its proper divisors (4521209892597).

10013121210123 is a wasteful number, since it uses less digits than its factorization.

10013121210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644759 (or 4644756 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 10013121210123 its reverse (32101212131001), we get a palindrome (42114333341124).

The spelling of 10013121210123 in words is "ten trillion, thirteen billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-three".