2131411 has 4 divisors (see below), whose sum is σ = 2136024. Its totient is φ = 2126800.

The previous prime is 2131399. The next prime is 2131417. The reversal of 2131411 is 1141312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131411 - 2²¹ = 34259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131391 and 2131400.

It is not an unprimeable number, because it can be changed into a prime (2131417) 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, 1525 + ... + 2566.

It is an arithmetic number, because the mean of its divisors is an integer number (534006).

2^2131411 is an apocalyptic number.

2131411 is a deficient number, since it is larger than the sum of its proper divisors (4613).

2131411 is an equidigital number, since it uses as much as digits as its factorization.

2131411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612.

The product of its digits is 24, while the sum is 13.

The square root of 2131411 is about 1459.9352725378. The cubic root of 2131411 is about 128.6932398187.

Adding to 2131411 its reverse (1141312), we get a palindrome (3272723).

Subtracting from 2131411 its reverse (1141312), we obtain a palindrome (990099).

The spelling of 2131411 in words is "two million, one hundred thirty-one thousand, four hundred eleven".