501220110100103 has 2 divisors, whose sum is σ = 501220110100104. Its totient is φ = 501220110100102.

The previous prime is 501220110100013. The next prime is 501220110100123. The reversal of 501220110100103 is 301001011022105.

Together with previous prime (501220110100013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501220110100103 is a prime.

It is a super-2 number, since 2×501220110100103² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501220110100123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250610055050051 + 250610055050052.

It is an arithmetic number, because the mean of its divisors is an integer number (250610055050052).

Almost surely, 2^{501220110100103} is an apocalyptic number.

501220110100103 is a deficient number, since it is larger than the sum of its proper divisors (1).

501220110100103 is an equidigital number, since it uses as much as digits as its factorization.

501220110100103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 501220110100103 its reverse (301001011022105), we get a palindrome (802221121122208).

The spelling of 501220110100103 in words is "five hundred one trillion, two hundred twenty billion, one hundred ten million, one hundred thousand, one hundred three".