12130431123 has 8 divisors (see below), whose sum is σ = 16225583248. Its totient is φ = 8061116544.

The previous prime is 12130431121. The next prime is 12130431139. The reversal of 12130431123 is 32113403121.

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

It is not a de Polignac number, because 12130431123 - 2¹ = 12130431121 is a prime.

It is a super-2 number, since 2×12130431123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12130431123.

It is not an unprimeable number, because it can be changed into a prime (12130431121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6458290 + ... + 6460167.

It is an arithmetic number, because the mean of its divisors is an integer number (2028197906).

Almost surely, 2^12130431123 is an apocalyptic number.

12130431123 is a deficient number, since it is larger than the sum of its proper divisors (4095152125).

12130431123 is a wasteful number, since it uses less digits than its factorization.

12130431123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12918773.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12130431123 its reverse (32113403121), we get a palindrome (44243834244).

The spelling of 12130431123 in words is "twelve billion, one hundred thirty million, four hundred thirty-one thousand, one hundred twenty-three".