12031144434 has 32 divisors (see below), whose sum is σ = 26788464000. Its totient is φ = 4002493392.

The previous prime is 12031144399. The next prime is 12031144441. The reversal of 12031144434 is 43444113021.

12031144434 is a `hidden beast` number, since 1 + 203 + 1 + 14 + 443 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12031144398 and 12031144407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191374 + ... + 246345.

It is an arithmetic number, because the mean of its divisors is an integer number (837139500).

Almost surely, 2^12031144434 is an apocalyptic number.

12031144434 is an abundant number, since it is smaller than the sum of its proper divisors (14757319566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12031144434 is a wasteful number, since it uses less digits than its factorization.

12031144434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438239 (or 438233 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 12031144434 its reverse (43444113021), we get a palindrome (55475257455).

The spelling of 12031144434 in words is "twelve billion, thirty-one million, one hundred forty-four thousand, four hundred thirty-four".