12144120040 has 64 divisors (see below), whose sum is σ = 30440869200. Its totient is φ = 4329357312.

The previous prime is 12144120013. The next prime is 12144120061. The reversal of 12144120040 is 4002144121.

It can be written as a sum of positive squares in 8 ways, for example, as 1179098244 + 10965021796 = 34338^2 + 104714^2 .

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, 387577 + ... + 417736.

Almost surely, 2^12144120040 is an apocalyptic number.

12144120040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12144120040 is an abundant number, since it is smaller than the sum of its proper divisors (18296749160).

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

12144120040 is a wasteful number, since it uses less digits than its factorization.

12144120040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805366 (or 805362 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12144120040 its reverse (4002144121), we get a palindrome (16146264161).

The spelling of 12144120040 in words is "twelve billion, one hundred forty-four million, one hundred twenty thousand, forty".