120144420040 has 64 divisors (see below), whose sum is σ = 279297532800. Its totient is φ = 46484347392.

The previous prime is 120144420017. The next prime is 120144420091. The reversal of 120144420040 is 40024441021.

It is a junction number, because it is equal to n+sod(n) for n = 120144419993 and 120144420020.

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, 161925 + ... + 516244.

It is an arithmetic number, because the mean of its divisors is an integer number (4364023950).

Almost surely, 2^120144420040 is an apocalyptic number.

120144420040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120144420040 is an abundant number, since it is smaller than the sum of its proper divisors (159153112760).

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

120144420040 is a wasteful number, since it uses less digits than its factorization.

120144420040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678326 (or 678322 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 120144420040 its reverse (40024441021), we get a palindrome (160168861061).

The spelling of 120144420040 in words is "one hundred twenty billion, one hundred forty-four million, four hundred twenty thousand, forty".