22231403 has 2 divisors, whose sum is σ = 22231404. Its totient is φ = 22231402.

The previous prime is 22231379. The next prime is 22231421. The reversal of 22231403 is 30413222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22231403 - 2⁸ = 22231147 is a prime.

It is not a weakly prime, because it can be changed into another prime (22234403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11115701 + 11115702.

It is an arithmetic number, because the mean of its divisors is an integer number (11115702).

Almost surely, 2^22231403 is an apocalyptic number.

22231403 is a deficient number, since it is larger than the sum of its proper divisors (1).

22231403 is an equidigital number, since it uses as much as digits as its factorization.

22231403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22231403 is about 4715.0188758901. The cubic root of 22231403 is about 281.1829332761.

Adding to 22231403 its reverse (30413222), we get a palindrome (52644625).

The spelling of 22231403 in words is "twenty-two million, two hundred thirty-one thousand, four hundred three".