11114431 has 4 divisors (see below), whose sum is σ = 11255200. Its totient is φ = 10973664.

The previous prime is 11114423. The next prime is 11114437. The reversal of 11114431 is 13441111.

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 11114431 - 2³ = 11114423 is a prime.

It is a super-2 number, since 2×11114431² = 247061152907522, 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 (11114437) 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, 70266 + ... + 70423.

It is an arithmetic number, because the mean of its divisors is an integer number (2813800).

Almost surely, 2^11114431 is an apocalyptic number.

11114431 is the 2109-th centered pentagonal number.

11114431 is a deficient number, since it is larger than the sum of its proper divisors (140769).

11114431 is an equidigital number, since it uses as much as digits as its factorization.

11114431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140768.

The product of its digits is 48, while the sum is 16.

The square root of 11114431 is about 3333.8312794741. The cubic root of 11114431 is about 223.1665389111.

Adding to 11114431 its reverse (13441111), we get a palindrome (24555542).

The spelling of 11114431 in words is "eleven million, one hundred fourteen thousand, four hundred thirty-one".