4203031241021 has 4 divisors (see below), whose sum is σ = 4203363430332. Its totient is φ = 4202699051712.

The previous prime is 4203031241009. The next prime is 4203031241029. The reversal of 4203031241021 is 1201421303024.

4203031241021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 768403015396 + 3434628225625 = 876586^2 + 1853275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4203031241021 is a prime.

It is a super-2 number, since 2×4203031241021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4203031241029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166075676 + ... + 166100981.

It is an arithmetic number, because the mean of its divisors is an integer number (1050840857583).

Almost surely, 2^{4203031241021} is an apocalyptic number.

It is an amenable number.

4203031241021 is a deficient number, since it is larger than the sum of its proper divisors (332189311).

4203031241021 is a wasteful number, since it uses less digits than its factorization.

4203031241021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332189310.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 4203031241021 its reverse (1201421303024), we get a palindrome (5404452544045).

The spelling of 4203031241021 in words is "four trillion, two hundred three billion, thirty-one million, two hundred forty-one thousand, twenty-one".