103220431 has 2 divisors, whose sum is σ = 103220432. Its totient is φ = 103220430.

The previous prime is 103220419. The next prime is 103220437. The reversal of 103220431 is 134022301.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103220431 - 2⁷ = 103220303 is a prime.

It is a super-2 number, since 2×103220431² = 21308914751651522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103220437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51610215 + 51610216.

It is an arithmetic number, because the mean of its divisors is an integer number (51610216).

Almost surely, 2^103220431 is an apocalyptic number.

103220431 is a deficient number, since it is larger than the sum of its proper divisors (1).

103220431 is an equidigital number, since it uses as much as digits as its factorization.

103220431 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 103220431 is about 10159.7456168942. The cubic root of 103220431 is about 469.0889716231.

Adding to 103220431 its reverse (134022301), we get a palindrome (237242732).

The spelling of 103220431 in words is "one hundred three million, two hundred twenty thousand, four hundred thirty-one".