2043133302421 has 4 divisors (see below), whose sum is σ = 2043145554412. Its totient is φ = 2043121050432.

The previous prime is 2043133302401. The next prime is 2043133302461. The reversal of 2043133302421 is 1242033313402.

It is a happy number.

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 612836899921 + 1430296402500 = 782839^2 + 1195950^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043133302421 - 2⁷ = 2043133302293 is a prime.

It is a super-2 number, since 2×2043133302421² (a number of 25 digits) contains 22 as substring.

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 2043133302421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043133302401) 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, 5872356 + ... + 6210541.

It is an arithmetic number, because the mean of its divisors is an integer number (510786388603).

Almost surely, 2^{2043133302421} is an apocalyptic number.

It is an amenable number.

2043133302421 is a deficient number, since it is larger than the sum of its proper divisors (12251991).

2043133302421 is a wasteful number, since it uses less digits than its factorization.

2043133302421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12251990.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 2043133302421 its reverse (1242033313402), we get a palindrome (3285166615823).

The spelling of 2043133302421 in words is "two trillion, forty-three billion, one hundred thirty-three million, three hundred two thousand, four hundred twenty-one".