10231020012123 has 12 divisors (see below), whose sum is σ = 15020404608768. Its totient is φ = 6708865581360.

The previous prime is 10231020012119. The next prime is 10231020012203. The reversal of 10231020012123 is 32121002013201.

10231020012123 is a `hidden beast` number, since 10 + 2 + 310 + 200 + 121 + 23 = 666.

It is not a de Polignac number, because 10231020012123 - 2² = 10231020012119 is a prime.

It is a super-2 number, since 2×10231020012123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10231020012096 and 10231020012105.

It is not an unprimeable number, because it can be changed into a prime (10231020012223) 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 11 ways as a sum of consecutive naturals, for example, 9317868315 + ... + 9317869412.

It is an arithmetic number, because the mean of its divisors is an integer number (1251700384064).

Almost surely, 2^{10231020012123} is an apocalyptic number.

10231020012123 is a deficient number, since it is larger than the sum of its proper divisors (4789384596645).

10231020012123 is a wasteful number, since it uses less digits than its factorization.

10231020012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18635737794 (or 18635737791 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10231020012123 its reverse (32121002013201), we get a palindrome (42352022025324).

The spelling of 10231020012123 in words is "ten trillion, two hundred thirty-one billion, twenty million, twelve thousand, one hundred twenty-three".