12054140512 has 48 divisors (see below), whose sum is σ = 25001222400. Its totient is φ = 5705147520.

The previous prime is 12054140477. The next prime is 12054140519. The reversal of 12054140512 is 21504145021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054140519) 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, 794437 + ... + 809467.

It is an arithmetic number, because the mean of its divisors is an integer number (520858800).

Almost surely, 2^12054140512 is an apocalyptic number.

It is an amenable number.

12054140512 is an abundant number, since it is smaller than the sum of its proper divisors (12947081888).

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

12054140512 is a wasteful number, since it uses less digits than its factorization.

12054140512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16379 (or 16371 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 12054140512 its reverse (21504145021), we get a palindrome (33558285533).

The spelling of 12054140512 in words is "twelve billion, fifty-four million, one hundred forty thousand, five hundred twelve".