3420100043 has 2 divisors, whose sum is σ = 3420100044. Its totient is φ = 3420100042.

The previous prime is 3420100039. The next prime is 3420100081. The reversal of 3420100043 is 3400010243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3420100043 - 2² = 3420100039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3420099994 and 3420100030.

It is not a weakly prime, because it can be changed into another prime (3420100093) 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, 1710050021 + 1710050022.

It is an arithmetic number, because the mean of its divisors is an integer number (1710050022).

Almost surely, 2^3420100043 is an apocalyptic number.

3420100043 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420100043 is an equidigital number, since it uses as much as digits as its factorization.

3420100043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3420100043 is about 58481.6214122009. The cubic root of 3420100043 is about 1506.6519453285.

Adding to 3420100043 its reverse (3400010243), we get a palindrome (6820110286).

The spelling of 3420100043 in words is "three billion, four hundred twenty million, one hundred thousand, forty-three".