103405431643 has 2 divisors, whose sum is σ = 103405431644. Its totient is φ = 103405431642.

The previous prime is 103405431611. The next prime is 103405431749. The reversal of 103405431643 is 346134504301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103405431643 - 2⁵ = 103405431611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103405431599 and 103405431608.

It is not a weakly prime, because it can be changed into another prime (103405431443) 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, 51702715821 + 51702715822.

It is an arithmetic number, because the mean of its divisors is an integer number (51702715822).

Almost surely, 2^103405431643 is an apocalyptic number.

103405431643 is a deficient number, since it is larger than the sum of its proper divisors (1).

103405431643 is an equidigital number, since it uses as much as digits as its factorization.

103405431643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 103405431643 its reverse (346134504301), we get a palindrome (449539935944).

The spelling of 103405431643 in words is "one hundred three billion, four hundred five million, four hundred thirty-one thousand, six hundred forty-three".