1201020144 has 40 divisors (see below), whose sum is σ = 3105469392. Its totient is φ = 399974400.

The previous prime is 1201020137. The next prime is 1201020157. The reversal of 1201020144 is 4410201021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44494 + ... + 66194.

Almost surely, 2^1201020144 is an apocalyptic number.

It is an amenable number.

1201020144 is an abundant number, since it is smaller than the sum of its proper divisors (1904449248).

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

1201020144 is a wasteful number, since it uses less digits than its factorization.

1201020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22865 (or 22859 counting only the distinct ones).

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

The square root of 1201020144 is about 34655.7375336321. The cubic root of 1201020144 is about 1062.9596129919.

Adding to 1201020144 its reverse (4410201021), we get a palindrome (5611221165).

The spelling of 1201020144 in words is "one billion, two hundred one million, twenty thousand, one hundred forty-four".