103221427 has 2 divisors, whose sum is σ = 103221428. Its totient is φ = 103221426.

The previous prime is 103221421. The next prime is 103221431. The reversal of 103221427 is 724122301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103221427 - 2⁷ = 103221299 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103221398 and 103221407.

It is not a weakly prime, because it can be changed into another prime (103221421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51610713 + 51610714.

It is an arithmetic number, because the mean of its divisors is an integer number (51610714).

Almost surely, 2^103221427 is an apocalyptic number.

103221427 is a deficient number, since it is larger than the sum of its proper divisors (1).

103221427 is an equidigital number, since it uses as much as digits as its factorization.

103221427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 103221427 is about 10159.7946337512. The cubic root of 103221427 is about 469.0904804042.

Adding to 103221427 its reverse (724122301), we get a palindrome (827343728).

The spelling of 103221427 in words is "one hundred three million, two hundred twenty-one thousand, four hundred twenty-seven".