1200031489824 has 96 divisors (see below), whose sum is σ = 3323071604160. Its totient is φ = 378135014400.

The previous prime is 1200031489757. The next prime is 1200031489847. The reversal of 1200031489824 is 4289841300021.

It is a tau number, because it is divible by the number of its divisors (96).

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, 127294 + ... + 1554434.

It is an arithmetic number, because the mean of its divisors is an integer number (34615329210).

Almost surely, 2^{1200031489824} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200031489824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1661535802080).

1200031489824 is an abundant number, since it is smaller than the sum of its proper divisors (2123040114336).

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

1200031489824 is a wasteful number, since it uses less digits than its factorization.

1200031489824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427634 (or 1427626 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

Adding to 1200031489824 its reverse (4289841300021), we get a palindrome (5489872789845).

The spelling of 1200031489824 in words is "one trillion, two hundred billion, thirty-one million, four hundred eighty-nine thousand, eight hundred twenty-four".