103221500191 has 2 divisors, whose sum is σ = 103221500192. Its totient is φ = 103221500190.

The previous prime is 103221500183. The next prime is 103221500299. The reversal of 103221500191 is 191005122301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103221500191 - 2³ = 103221500183 is a prime.

It is a super-2 number, since 2×103221500191² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103221500491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51610750095 + 51610750096.

It is an arithmetic number, because the mean of its divisors is an integer number (51610750096).

Almost surely, 2^103221500191 is an apocalyptic number.

103221500191 is a deficient number, since it is larger than the sum of its proper divisors (1).

103221500191 is an equidigital number, since it uses as much as digits as its factorization.

103221500191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 25.

Adding to 103221500191 its reverse (191005122301), we get a palindrome (294226622492).

The spelling of 103221500191 in words is "one hundred three billion, two hundred twenty-one million, five hundred thousand, one hundred ninety-one".