10120111111 has 8 divisors (see below), whose sum is σ = 11275017984. Its totient is φ = 9004353720.

The previous prime is 10120111109. The next prime is 10120111117. The reversal of 10120111111 is 11111102101.

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 10120111111 - 2¹ = 10120111109 is a prime.

It is a Duffinian number.

10120111111 is a modest number, since divided by 111111 gives 10120 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120111117) 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, 9786825 + ... + 9787858.

It is an arithmetic number, because the mean of its divisors is an integer number (1409377248).

Almost surely, 2^10120111111 is an apocalyptic number.

10120111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10120111111 is a deficient number, since it is larger than the sum of its proper divisors (1154906873).

10120111111 is a wasteful number, since it uses less digits than its factorization.

10120111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19574741.

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

Adding to 10120111111 its reverse (11111102101), we get a palindrome (21231213212).

The spelling of 10120111111 in words is "ten billion, one hundred twenty million, one hundred eleven thousand, one hundred eleven".