4100203402021 has 8 divisors (see below), whose sum is σ = 4343704813080. Its totient is φ = 3856958988288.

The previous prime is 4100203401991. The next prime is 4100203402051. The reversal of 4100203402021 is 1202043020014.

4100203402021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4100203401991) and next prime (4100203402051).

It can be written as a sum of positive squares in 4 ways, for example, as 744620571396 + 3355582830625 = 862914^2 + 1831825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4100203402021 - 2⁹ = 4100203401509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4100203402021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4100203402051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64216476 + ... + 64280293.

It is an arithmetic number, because the mean of its divisors is an integer number (542963101635).

Almost surely, 2^{4100203402021} is an apocalyptic number.

It is an amenable number.

4100203402021 is a deficient number, since it is larger than the sum of its proper divisors (243501411059).

4100203402021 is a wasteful number, since it uses less digits than its factorization.

4100203402021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128498663.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 4100203402021 its reverse (1202043020014), we get a palindrome (5302246422035).

The spelling of 4100203402021 in words is "four trillion, one hundred billion, two hundred three million, four hundred two thousand, twenty-one".