10890111 has 4 divisors (see below), whose sum is σ = 14520152. Its totient is φ = 7260072.

The previous prime is 10890101. The next prime is 10890119. The reversal of 10890111 is 11109801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11109801 = 3 ⋅3703267.

It is not a de Polignac number, because 10890111 - 2⁵ = 10890079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10890119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1815016 + ... + 1815021.

It is an arithmetic number, because the mean of its divisors is an integer number (3630038).

Almost surely, 2^10890111 is an apocalyptic number.

10890111 is a deficient number, since it is larger than the sum of its proper divisors (3630041).

10890111 is an equidigital number, since it uses as much as digits as its factorization.

10890111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630040.

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 10890111 is about 3300.0168181390. The cubic root of 10890111 is about 221.6549505431.

Adding to 10890111 its reverse (11109801), we get a palindrome (21999912).

It can be divided in two parts, 108901 and 11, that multiplied together give a palindrome (1197911).

The spelling of 10890111 in words is "ten million, eight hundred ninety thousand, one hundred eleven".