11200431 has 16 divisors (see below), whose sum is σ = 16386048. Its totient is φ = 6748800.

The previous prime is 11200403. The next prime is 11200451. The reversal of 11200431 is 13400211.

It is a happy number.

It is not a de Polignac number, because 11200431 - 2⁷ = 11200303 is a prime.

It is a super-2 number, since 2×11200431² = 250899309171522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5415 + ... + 7191.

It is an arithmetic number, because the mean of its divisors is an integer number (1024128).

Almost surely, 2^11200431 is an apocalyptic number.

11200431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11200431 is a deficient number, since it is larger than the sum of its proper divisors (5185617).

11200431 is a wasteful number, since it uses less digits than its factorization.

11200431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11200431 is about 3346.7044984581. The cubic root of 11200431 is about 223.7406583493.

Adding to 11200431 its reverse (13400211), we get a palindrome (24600642).

The spelling of 11200431 in words is "eleven million, two hundred thousand, four hundred thirty-one".