20100010111 has 8 divisors (see below), whose sum is σ = 21209644400. Its totient is φ = 18995549760.

The previous prime is 20100010093. The next prime is 20100010123. The reversal of 20100010111 is 11101000102.

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 20100010111 - 2¹³ = 20100001919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100010094 and 20100010103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100013111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285500 + ... + 1301041.

It is an arithmetic number, because the mean of its divisors is an integer number (2651205550).

Almost surely, 2^20100010111 is an apocalyptic number.

20100010111 is a deficient number, since it is larger than the sum of its proper divisors (1109634289).

20100010111 is a wasteful number, since it uses less digits than its factorization.

20100010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586969.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 20100010111 its reverse (11101000102), we get a palindrome (31201010213).

The spelling of 20100010111 in words is "twenty billion, one hundred million, ten thousand, one hundred eleven".