1131020009999 has 8 divisors (see below), whose sum is σ = 1234627419648. Its totient is φ = 1027543835160.

The previous prime is 1131020009963. The next prime is 1131020010037. The reversal of 1131020009999 is 9999000201311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131020009999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131020009909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32790677 + ... + 32825150.

It is an arithmetic number, because the mean of its divisors is an integer number (154328427456).

Almost surely, 2^{1131020009999} is an apocalyptic number.

1131020009999 is a deficient number, since it is larger than the sum of its proper divisors (103607409649).

1131020009999 is a wasteful number, since it uses less digits than its factorization.

1131020009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65617405.

The product of its (nonzero) digits is 39366, while the sum is 44.

The spelling of 1131020009999 in words is "one trillion, one hundred thirty-one billion, twenty million, nine thousand, nine hundred ninety-nine".