2130111 has 8 divisors (see below), whose sum is σ = 3155760. Its totient is φ = 1420056.

The previous prime is 2130101. The next prime is 2130133. The reversal of 2130111 is 1110312.

It is not a de Polignac number, because 2130111 - 2⁶ = 2130047 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 = 2130093 and 2130102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130101) 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, 39420 + ... + 39473.

It is an arithmetic number, because the mean of its divisors is an integer number (394470).

2^2130111 is an apocalyptic number.

2130111 is a deficient number, since it is larger than the sum of its proper divisors (1025649).

2130111 is an equidigital number, since it uses as much as digits as its factorization.

2130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78902 (or 78896 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 2130111 is about 1459.4899794106. The cubic root of 2130111 is about 128.6670701065.

Adding to 2130111 its reverse (1110312), we get a palindrome (3240423).

It can be divided in two parts, 21301 and 11, that added together give a palindrome (21312).

The spelling of 2130111 in words is "two million, one hundred thirty thousand, one hundred eleven".