2111431 has 8 divisors (see below), whose sum is σ = 2436480. Its totient is φ = 1792248.

The previous prime is 2111419. The next prime is 2111443. The reversal of 2111431 is 1341112.

2111431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2111419) and next prime (2111443).

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

It is a cyclic number.

It is not a de Polignac number, because 2111431 - 2⁷ = 2111303 is a prime.

It is a super-2 number, since 2×2111431² = 8916281735522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 2158.

It is an arithmetic number, because the mean of its divisors is an integer number (304560).

2^2111431 is an apocalyptic number.

2111431 is a deficient number, since it is larger than the sum of its proper divisors (325049).

2111431 is a wasteful number, since it uses less digits than its factorization.

2111431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933.

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

The square root of 2111431 is about 1453.0763916601. The cubic root of 2111431 is about 128.2898501508.

Adding to 2111431 its reverse (1341112), we get a palindrome (3452543).

The spelling of 2111431 in words is "two million, one hundred eleven thousand, four hundred thirty-one".