20200111211011 has 8 divisors (see below), whose sum is σ = 20220225248880. Its totient is φ = 20179997744928.

The previous prime is 20200111211003. The next prime is 20200111211023. The reversal of 20200111211011 is 11011211100202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20200111211011 - 2³ = 20200111211003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200111210982 and 20200111211000.

It is not an unprimeable number, because it can be changed into a prime (20200111211041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123091665 + ... + 123255661.

It is an arithmetic number, because the mean of its divisors is an integer number (2527528156110).

Almost surely, 2^{20200111211011} is an apocalyptic number.

20200111211011 is a deficient number, since it is larger than the sum of its proper divisors (20114037869).

20200111211011 is a wasteful number, since it uses less digits than its factorization.

20200111211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285893.

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

Adding to 20200111211011 its reverse (11011211100202), we get a palindrome (31211322311213).

The spelling of 20200111211011 in words is "twenty trillion, two hundred billion, one hundred eleven million, two hundred eleven thousand, eleven".