12042134440 has 64 divisors (see below), whose sum is σ = 31473164160. Its totient is φ = 4061041920.

The previous prime is 12042134369. The next prime is 12042134453. The reversal of 12042134440 is 4443124021.

It is a super-2 number, since 2×12042134440² (a number of 21 digits) contains 22 as substring.

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, 335442 + ... + 369601.

It is an arithmetic number, because the mean of its divisors is an integer number (491768190).

Almost surely, 2^12042134440 is an apocalyptic number.

12042134440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12042134440 is an abundant number, since it is smaller than the sum of its proper divisors (19431029720).

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

12042134440 is a wasteful number, since it uses less digits than its factorization.

12042134440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705122 (or 705118 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12042134440 its reverse (4443124021), we get a palindrome (16485258461).

The spelling of 12042134440 in words is "twelve billion, forty-two million, one hundred thirty-four thousand, four hundred forty".