2103213111 has 8 divisors (see below), whose sum is σ = 2838071040. Its totient is φ = 1385248632.

The previous prime is 2103213107. The next prime is 2103213143. The reversal of 2103213111 is 1113123012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2103213111 - 2² = 2103213107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103213611) 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, 4223071 + ... + 4223568.

It is an arithmetic number, because the mean of its divisors is an integer number (354758880).

Almost surely, 2^2103213111 is an apocalyptic number.

2103213111 is a deficient number, since it is larger than the sum of its proper divisors (734857929).

2103213111 is an equidigital number, since it uses as much as digits as its factorization.

2103213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446725.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2103213111 is about 45860.8014648676. The cubic root of 2103213111 is about 1281.2319501054.

Adding to 2103213111 its reverse (1113123012), we get a palindrome (3216336123).

Subtracting from 2103213111 its reverse (1113123012), we obtain a palindrome (990090099).

It can be divided in two parts, 21032 and 13111, that added together give a palindrome (34143).

The spelling of 2103213111 in words is "two billion, one hundred three million, two hundred thirteen thousand, one hundred eleven".