103600203991 has 2 divisors, whose sum is σ = 103600203992. Its totient is φ = 103600203990.

The previous prime is 103600203989. The next prime is 103600204003. The reversal of 103600203991 is 199302006301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103600203991 - 2¹ = 103600203989 is a prime.

It is a super-3 number, since 3×103600203991³ (a number of 34 digits) contains 333 as substring.

Together with 103600203989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103600204991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51800101995 + 51800101996.

It is an arithmetic number, because the mean of its divisors is an integer number (51800101996).

Almost surely, 2^103600203991 is an apocalyptic number.

103600203991 is a deficient number, since it is larger than the sum of its proper divisors (1).

103600203991 is an equidigital number, since it uses as much as digits as its factorization.

103600203991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 103600203991 in words is "one hundred three billion, six hundred million, two hundred three thousand, nine hundred ninety-one".