20100011111011 has 16 divisors (see below), whose sum is σ = 21678491068416. Its totient is φ = 18526161599136.

The previous prime is 20100011110973. The next prime is 20100011111021. The reversal of 20100011111011 is 11011111000102.

It is a cyclic number.

It is not a de Polignac number, because 20100011111011 - 2³⁹ = 19550255297123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20100011111021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38503206 + ... + 39021748.

It is an arithmetic number, because the mean of its divisors is an integer number (1354905691776).

Almost surely, 2^{20100011111011} is an apocalyptic number.

20100011111011 is a deficient number, since it is larger than the sum of its proper divisors (1578479957405).

20100011111011 is a wasteful number, since it uses less digits than its factorization.

20100011111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523002.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 20100011111011 its reverse (11011111000102), we get a palindrome (31111122111113).

The spelling of 20100011111011 in words is "twenty trillion, one hundred billion, eleven million, one hundred eleven thousand, eleven".