20201111010 has 48 divisors (see below), whose sum is σ = 53013782016. Its totient is φ = 5336614944.

The previous prime is 20201110987. The next prime is 20201111089. The reversal of 20201111010 is 1011110202.

It is a happy number.

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 = 20201110983 and 20201111001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1039234 + ... + 1058493.

It is an arithmetic number, because the mean of its divisors is an integer number (1104453792).

Almost surely, 2^20201111010 is an apocalyptic number.

20201111010 is an abundant number, since it is smaller than the sum of its proper divisors (32812671006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201111010 is a wasteful number, since it uses less digits than its factorization.

20201111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097847 (or 2097844 counting only the distinct ones).

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

Adding to 20201111010 its reverse (1011110202), we get a palindrome (21212221212).

The spelling of 20201111010 in words is "twenty billion, two hundred one million, one hundred eleven thousand, ten".