2043031422421 has 4 divisors (see below), whose sum is σ = 2228761551744. Its totient is φ = 1857301293100.

The previous prime is 2043031422401. The next prime is 2043031422433. The reversal of 2043031422421 is 1242241303402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2043031422421 - 2⁷ = 2043031422293 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 2043031422421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043031422401) 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 3 ways as a sum of consecutive naturals, for example, 92865064645 + ... + 92865064666.

It is an arithmetic number, because the mean of its divisors is an integer number (557190387936).

Almost surely, 2^{2043031422421} is an apocalyptic number.

It is an amenable number.

2043031422421 is a deficient number, since it is larger than the sum of its proper divisors (185730129323).

2043031422421 is a wasteful number, since it uses less digits than its factorization.

2043031422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185730129322.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2043031422421 its reverse (1242241303402), we get a palindrome (3285272725823).

The spelling of 2043031422421 in words is "two trillion, forty-three billion, thirty-one million, four hundred twenty-two thousand, four hundred twenty-one".