10120110111 has 20 divisors (see below), whose sum is σ = 15121151232. Its totient is φ = 6745197888.

The previous prime is 10120110109. The next prime is 10120110113. The reversal of 10120110111 is 11101102101.

It is an interprime number because it is at equal distance from previous prime (10120110109) and next prime (10120110113).

It is not a de Polignac number, because 10120110111 - 2¹ = 10120110109 is a prime.

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 = 10120110093 and 10120110102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120110113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 425250 + ... + 448416.

Almost surely, 2^10120110111 is an apocalyptic number.

10120110111 is a deficient number, since it is larger than the sum of its proper divisors (5001041121).

10120110111 is an equidigital number, since it uses as much as digits as its factorization.

10120110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28572 (or 28563 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 10120110111 its reverse (11101102101), we get a palindrome (21221212212).

The spelling of 10120110111 in words is "ten billion, one hundred twenty million, one hundred ten thousand, one hundred eleven".