22103431 has 8 divisors (see below), whose sum is σ = 25310880. Its totient is φ = 18908448.

The previous prime is 22103407. The next prime is 22103447. The reversal of 22103431 is 13430122.

It is a happy number.

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 22103431 - 2⁵ = 22103399 is a prime.

It is a super-2 number, since 2×22103431² = 977123323943522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103401) 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, 1065 + ... + 6733.

It is an arithmetic number, because the mean of its divisors is an integer number (3163860).

Almost surely, 2^22103431 is an apocalyptic number.

22103431 is a deficient number, since it is larger than the sum of its proper divisors (3207449).

22103431 is an equidigital number, since it uses as much as digits as its factorization.

22103431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22103431 is about 4701.4286126666. The cubic root of 22103431 is about 280.6423644726.

Adding to 22103431 its reverse (13430122), we get a palindrome (35533553).

The spelling of 22103431 in words is "twenty-two million, one hundred three thousand, four hundred thirty-one".