12010023232123 has 4 divisors (see below), whose sum is σ = 13725740836720. Its totient is φ = 10294305627528.

The previous prime is 12010023232111. The next prime is 12010023232183. The reversal of 12010023232123 is 32123232001021.

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 12010023232123 - 2⁹ = 12010023231611 is a prime.

It is a super-2 number, since 2×12010023232123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010023232094 and 12010023232103.

It is not an unprimeable number, because it can be changed into a prime (12010023232183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857858802288 + ... + 857858802301.

It is an arithmetic number, because the mean of its divisors is an integer number (3431435209180).

Almost surely, 2^{12010023232123} is an apocalyptic number.

12010023232123 is a deficient number, since it is larger than the sum of its proper divisors (1715717604597).

12010023232123 is an equidigital number, since it uses as much as digits as its factorization.

12010023232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715717604596.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12010023232123 its reverse (32123232001021), we get a palindrome (44133255233144).

The spelling of 12010023232123 in words is "twelve trillion, ten billion, twenty-three million, two hundred thirty-two thousand, one hundred twenty-three".