12012131403 has 24 divisors (see below), whose sum is σ = 17434731600. Its totient is φ = 7969464384.

The previous prime is 12012131377. The next prime is 12012131423. The reversal of 12012131403 is 30413121021.

12012131403 is a `hidden beast` number, since 120 + 12 + 131 + 403 = 666.

It is not a de Polignac number, because 12012131403 - 2¹⁴ = 12012115019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012131423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1876933 + ... + 1883321.

It is an arithmetic number, because the mean of its divisors is an integer number (726447150).

Almost surely, 2^12012131403 is an apocalyptic number.

12012131403 is a deficient number, since it is larger than the sum of its proper divisors (5422600197).

12012131403 is a wasteful number, since it uses less digits than its factorization.

12012131403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371 (or 7368 counting only the distinct ones).

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

Adding to 12012131403 its reverse (30413121021), we get a palindrome (42425252424).

The spelling of 12012131403 in words is "twelve billion, twelve million, one hundred thirty-one thousand, four hundred three".