12031344351 has 24 divisors (see below), whose sum is σ = 18719189216. Its totient is φ = 7402415040.

The previous prime is 12031344337. The next prime is 12031344361. The reversal of 12031344351 is 15344313021.

It is a happy number.

12031344351 is a `hidden beast` number, since 1 + 203 + 13 + 443 + 5 + 1 = 666.

It is not a de Polignac number, because 12031344351 - 2⁵ = 12031344319 is a prime.

It is a super-2 number, since 2×12031344351² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031344361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 966201 + ... + 978573.

Almost surely, 2^12031344351 is an apocalyptic number.

12031344351 is a deficient number, since it is larger than the sum of its proper divisors (6687844865).

12031344351 is a wasteful number, since it uses less digits than its factorization.

12031344351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20703 (or 20700 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 12031344351 its reverse (15344313021), we get a palindrome (27375657372).

The spelling of 12031344351 in words is "twelve billion, thirty-one million, three hundred forty-four thousand, three hundred fifty-one".