1287330561110 has 32 divisors (see below), whose sum is σ = 2575544379552. Its totient is φ = 459287745280.

The previous prime is 1287330561109. The next prime is 1287330561113. The reversal of 1287330561110 is 111650337821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287330561113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110399879 + ... + 110411538.

It is an arithmetic number, because the mean of its divisors is an integer number (80485761861).

Almost surely, 2^{1287330561110} is an apocalyptic number.

1287330561110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1287330561110 is an abundant number, since it is smaller than the sum of its proper divisors (1288213818442).

1287330561110 is a wasteful number, since it uses less digits than its factorization.

1287330561110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220811488.

The product of its (nonzero) digits is 30240, while the sum is 38.

Adding to 1287330561110 its reverse (111650337821), we get a palindrome (1398980898931).

The spelling of 1287330561110 in words is "one trillion, two hundred eighty-seven billion, three hundred thirty million, five hundred sixty-one thousand, one hundred ten".