1201123330144 has 48 divisors (see below), whose sum is σ = 2492089271280. Its totient is φ = 568285908480.

The previous prime is 1201123330133. The next prime is 1201123330151. The reversal of 1201123330144 is 4410333211021.

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, 639367 + ... + 1676614.

It is an arithmetic number, because the mean of its divisors is an integer number (51918526485).

Almost surely, 2^{1201123330144} is an apocalyptic number.

It is an amenable number.

1201123330144 is an abundant number, since it is smaller than the sum of its proper divisors (1290965941136).

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

1201123330144 is a wasteful number, since it uses less digits than its factorization.

1201123330144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316863 (or 2316855 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1201123330144 its reverse (4410333211021), we get a palindrome (5611456541165).

The spelling of 1201123330144 in words is "one trillion, two hundred one billion, one hundred twenty-three million, three hundred thirty thousand, one hundred forty-four".