103311643 has 2 divisors, whose sum is σ = 103311644. Its totient is φ = 103311642.

The previous prime is 103311641. The next prime is 103311647. The reversal of 103311643 is 346113301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103311643 - 2¹ = 103311641 is a prime.

Together with 103311641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103311641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51655821 + 51655822.

It is an arithmetic number, because the mean of its divisors is an integer number (51655822).

Almost surely, 2^103311643 is an apocalyptic number.

103311643 is a deficient number, since it is larger than the sum of its proper divisors (1).

103311643 is an equidigital number, since it uses as much as digits as its factorization.

103311643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 103311643 is about 10164.2335175851. The cubic root of 103311643 is about 469.2271030185.

Adding to 103311643 its reverse (346113301), we get a palindrome (449424944).

The spelling of 103311643 in words is "one hundred three million, three hundred eleven thousand, six hundred forty-three".