101223503 has 2 divisors, whose sum is σ = 101223504. Its totient is φ = 101223502.

The previous prime is 101223497. The next prime is 101223517. The reversal of 101223503 is 305322101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101223503 - 2⁶ = 101223439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101223523) 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 as a sum of consecutive naturals, namely, 50611751 + 50611752.

It is an arithmetic number, because the mean of its divisors is an integer number (50611752).

Almost surely, 2^101223503 is an apocalyptic number.

101223503 is a deficient number, since it is larger than the sum of its proper divisors (1).

101223503 is an equidigital number, since it uses as much as digits as its factorization.

101223503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 101223503 is about 10060.9891660810. The cubic root of 101223503 is about 466.0442144003.

Adding to 101223503 its reverse (305322101), we get a palindrome (406545604).

The spelling of 101223503 in words is "one hundred one million, two hundred twenty-three thousand, five hundred three".