12031122321123 has 16 divisors (see below), whose sum is σ = 16053546643200. Its totient is φ = 8014724825184.

The previous prime is 12031122321079. The next prime is 12031122321139. The reversal of 12031122321123 is 32112322113021.

It is not a de Polignac number, because 12031122321123 - 2⁶ = 12031122321059 is a prime.

It is a super-2 number, since 2×12031122321123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12031122321093 and 12031122321102.

It is not an unprimeable number, because it can be changed into a prime (12031122321193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28261453 + ... + 28684001.

It is an arithmetic number, because the mean of its divisors is an integer number (1003346665200).

Almost surely, 2^{12031122321123} is an apocalyptic number.

12031122321123 is a deficient number, since it is larger than the sum of its proper divisors (4022424322077).

12031122321123 is a wasteful number, since it uses less digits than its factorization.

12031122321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429658.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12031122321123 its reverse (32112322113021), we get a palindrome (44143444434144).

The spelling of 12031122321123 in words is "twelve trillion, thirty-one billion, one hundred twenty-two million, three hundred twenty-one thousand, one hundred twenty-three".