200102020011 has 24 divisors (see below), whose sum is σ = 298339839200. Its totient is φ = 129143621376.

The previous prime is 200102019991. The next prime is 200102020057. The reversal of 200102020011 is 110020201002.

It is not a de Polignac number, because 200102020011 - 2⁹ = 200102019499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200102019975 and 200102020002.

It is not an unprimeable number, because it can be changed into a prime (200102021011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1443550 + ... + 1576083.

Almost surely, 2^200102020011 is an apocalyptic number.

200102020011 is a deficient number, since it is larger than the sum of its proper divisors (98237819189).

200102020011 is a wasteful number, since it uses less digits than its factorization.

200102020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019875 (or 3019872 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200102020011 its reverse (110020201002), we get a palindrome (310122221013).

The spelling of 200102020011 in words is "two hundred billion, one hundred two million, twenty thousand, eleven".