10123121123 has 8 divisors (see below), whose sum is σ = 10624320288. Its totient is φ = 9627010624.

The previous prime is 10123121119. The next prime is 10123121149. The reversal of 10123121123 is 32112132101.

10123121123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10123121123 - 2² = 10123121119 is a prime.

It is a super-2 number, since 2×10123121123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10123121623) 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 7 ways as a sum of consecutive naturals, for example, 1268090 + ... + 1276047.

It is an arithmetic number, because the mean of its divisors is an integer number (1328040036).

Almost surely, 2^10123121123 is an apocalyptic number.

10123121123 is a deficient number, since it is larger than the sum of its proper divisors (501199165).

10123121123 is a wasteful number, since it uses less digits than its factorization.

10123121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544333.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10123121123 its reverse (32112132101), we get a palindrome (42235253224).

The spelling of 10123121123 in words is "ten billion, one hundred twenty-three million, one hundred twenty-one thousand, one hundred twenty-three".