4100342021 has 2 divisors, whose sum is σ = 4100342022. Its totient is φ = 4100342020.

The previous prime is 4100342011. The next prime is 4100342107. The reversal of 4100342021 is 1202430014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3786556225 + 313785796 = 61535^2 + 17714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4100342021 - 2¹⁸ = 4100079877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4100342011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2050171010 + 2050171011.

It is an arithmetic number, because the mean of its divisors is an integer number (2050171011).

Almost surely, 2^4100342021 is an apocalyptic number.

It is an amenable number.

4100342021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4100342021 is an equidigital number, since it uses as much as digits as its factorization.

4100342021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4100342021 is about 64033.9130539435. The cubic root of 4100342021 is about 1600.5651676602.

Adding to 4100342021 its reverse (1202430014), we get a palindrome (5302772035).

The spelling of 4100342021 in words is "four billion, one hundred million, three hundred forty-two thousand, twenty-one".