1200102144 has 72 divisors (see below), whose sum is σ = 3272010672. Its totient is φ = 390266880.

The previous prime is 1200102109. The next prime is 1200102203. The reversal of 1200102144 is 4412010021.

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, 12432 + ... + 50544.

Almost surely, 2^1200102144 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 1200102144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636005336).

1200102144 is an abundant number, since it is smaller than the sum of its proper divisors (2071908528).

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

1200102144 is an equidigital number, since it uses as much as digits as its factorization.

1200102144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38173 (or 38159 counting only the distinct ones).

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

The square root of 1200102144 is about 34642.4904416527. The cubic root of 1200102144 is about 1062.6887194930.

Adding to 1200102144 its reverse (4412010021), we get a palindrome (5612112165).

The spelling of 1200102144 in words is "one billion, two hundred million, one hundred two thousand, one hundred forty-four".