102002011011 has 6 divisors (see below), whose sum is σ = 147336238140. Its totient is φ = 68001340668.

The previous prime is 102002010977. The next prime is 102002011021. The reversal of 102002011011 is 110110200201.

It is a happy number.

It is not a de Polignac number, because 102002011011 - 2¹⁰ = 102002009987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11333556779 = 102002011011 / (1 + 0 + 2 + 0 + 0 + 2 + 0 + 1 + 1 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 102002010984 and 102002011002.

It is not an unprimeable number, because it can be changed into a prime (102002011021) 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 5 ways as a sum of consecutive naturals, for example, 5666778381 + ... + 5666778398.

It is an arithmetic number, because the mean of its divisors is an integer number (24556039690).

Almost surely, 2^102002011011 is an apocalyptic number.

102002011011 is a deficient number, since it is larger than the sum of its proper divisors (45334227129).

102002011011 is a wasteful number, since it uses less digits than its factorization.

102002011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11333556785 (or 11333556782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 102002011011 its reverse (110110200201), we get a palindrome (212112211212).

The spelling of 102002011011 in words is "one hundred two billion, two million, eleven thousand, eleven".