22130431 has 2 divisors, whose sum is σ = 22130432. Its totient is φ = 22130430.

The previous prime is 22130411. The next prime is 22130441. The reversal of 22130431 is 13403122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22130431 is a prime.

It is a super-3 number, since 3×22130431³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22130401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065215 + 11065216.

It is an arithmetic number, because the mean of its divisors is an integer number (11065216).

Almost surely, 2^22130431 is an apocalyptic number.

22130431 is a deficient number, since it is larger than the sum of its proper divisors (1).

22130431 is an equidigital number, since it uses as much as digits as its factorization.

22130431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22130431 is about 4704.2992039198. The cubic root of 22130431 is about 280.7565889810.

Adding to 22130431 its reverse (13403122), we get a palindrome (35533553).

The spelling of 22130431 in words is "twenty-two million, one hundred thirty thousand, four hundred thirty-one".