12001431134 has 48 divisors (see below), whose sum is σ = 22932429696. Its totient is φ = 4657993200.

The previous prime is 12001431097. The next prime is 12001431161. The reversal of 12001431134 is 43113410021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262349 + ... + 304679.

It is an arithmetic number, because the mean of its divisors is an integer number (477758952).

Almost surely, 2^12001431134 is an apocalyptic number.

12001431134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12001431134 is a deficient number, since it is larger than the sum of its proper divisors (10930998562).

12001431134 is a wasteful number, since it uses less digits than its factorization.

12001431134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42621 (or 42614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12001431134 its reverse (43113410021), we get a palindrome (55114841155).

The spelling of 12001431134 in words is "twelve billion, one million, four hundred thirty-one thousand, one hundred thirty-four".