202020011111011 has 32 divisors (see below), whose sum is σ = 221107647172608. Its totient is φ = 184066208578560.

The previous prime is 202020011110991. The next prime is 202020011111027. The reversal of 202020011111011 is 110111110020202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202020011111011 - 2²⁹ = 202019474240099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202020011110982 and 202020011111000.

It is not an unprimeable number, because it can be changed into a prime (202020011111081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7008691 + ... + 21287596.

It is an arithmetic number, because the mean of its divisors is an integer number (6909613974144).

Almost surely, 2^{202020011111011} is an apocalyptic number.

202020011111011 is a deficient number, since it is larger than the sum of its proper divisors (19087636061597).

202020011111011 is a wasteful number, since it uses less digits than its factorization.

202020011111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28296531.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 202020011111011 its reverse (110111110020202), we get a palindrome (312131121131213).

The spelling of 202020011111011 in words is "two hundred two trillion, twenty billion, eleven million, one hundred eleven thousand, eleven".