1002086811 has 48 divisors (see below), whose sum is σ = 1725954048. Its totient is φ = 553132800.

The previous prime is 1002086807. The next prime is 1002086819. The reversal of 1002086811 is 1186802001.

It is not a de Polignac number, because 1002086811 - 2² = 1002086807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002086819) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42570 + ... + 61776.

It is an arithmetic number, because the mean of its divisors is an integer number (35957376).

Almost surely, 2^1002086811 is an apocalyptic number.

1002086811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002086811 is a deficient number, since it is larger than the sum of its proper divisors (723867237).

1002086811 is a wasteful number, since it uses less digits than its factorization.

1002086811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272 (or 19269 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 1002086811 is about 31655.7547848728. The cubic root of 1002086811 is about 1000.6951203624.

Adding to 1002086811 its reverse (1186802001), we get a palindrome (2188888812).

The spelling of 1002086811 in words is "one billion, two million, eighty-six thousand, eight hundred eleven".