20202100011 has 48 divisors (see below), whose sum is σ = 30474662400. Its totient is φ = 12885044544.

The previous prime is 20202099971. The next prime is 20202100019. The reversal of 20202100011 is 11000120202.

It is not a de Polignac number, because 20202100011 - 2⁶ = 20202099947 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 20202099966 and 20202100002.

It is not an unprimeable number, because it can be changed into a prime (20202100019) 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, 4950670 + ... + 4954748.

It is an arithmetic number, because the mean of its divisors is an integer number (634888800).

Almost surely, 2^20202100011 is an apocalyptic number.

20202100011 is a deficient number, since it is larger than the sum of its proper divisors (10272562389).

20202100011 is a wasteful number, since it uses less digits than its factorization.

20202100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4368 (or 4365 counting only the distinct ones).

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

Adding to 20202100011 its reverse (11000120202), we get a palindrome (31202220213).

The spelling of 20202100011 in words is "twenty billion, two hundred two million, one hundred thousand, eleven".