1131003635760 has 480 divisors, whose sum is σ = 4030782013440. Its totient is φ = 283603617792.

The previous prime is 1131003635743. The next prime is 1131003635819. The reversal of 1131003635760 is 675363001311.

It is a happy number.

1131003635760 is a `hidden beast` number, since 1 + 1 + 3 + 10 + 0 + 3 + 635 + 7 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 884286801 + ... + 884288079.

It is an arithmetic number, because the mean of its divisors is an integer number (8397462528).

Almost surely, 2^{1131003635760} is an apocalyptic number.

1131003635760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131003635760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015391006720).

1131003635760 is an abundant number, since it is smaller than the sum of its proper divisors (2899778377680).

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

1131003635760 is a wasteful number, since it uses less digits than its factorization.

1131003635760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2176 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The spelling of 1131003635760 in words is "one trillion, one hundred thirty-one billion, three million, six hundred thirty-five thousand, seven hundred sixty".