1020120144 has 20 divisors (see below), whose sum is σ = 2635310496. Its totient is φ = 340040032.

The previous prime is 1020120121. The next prime is 1020120161. The reversal of 1020120144 is 4410210201.

1020120144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10626204 + ... + 10626299.

Almost surely, 2^1020120144 is an apocalyptic number.

It is an amenable number.

1020120144 is an abundant number, since it is smaller than the sum of its proper divisors (1615190352).

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

1020120144 is a wasteful number, since it uses less digits than its factorization.

1020120144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21252514 (or 21252508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1020120144 is about 31939.3197172388. The cubic root of 1020120144 is about 1006.6622307793.

Adding to 1020120144 its reverse (4410210201), we get a palindrome (5430330345).

The spelling of 1020120144 in words is "one billion, twenty million, one hundred twenty thousand, one hundred forty-four".