2021043351541 has 12 divisors (see below), whose sum is σ = 2112823865152. Its totient is φ = 1933090864056.

The previous prime is 2021043351539. The next prime is 2021043351559. The reversal of 2021043351541 is 1451533401202.

It is not a de Polignac number, because 2021043351541 - 2¹ = 2021043351539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021043358541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15363850 + ... + 15494836.

Almost surely, 2^{2021043351541} is an apocalyptic number.

It is an amenable number.

2021043351541 is a deficient number, since it is larger than the sum of its proper divisors (91780513611).

2021043351541 is a wasteful number, since it uses less digits than its factorization.

2021043351541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160200 (or 160177 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 2021043351541 its reverse (1451533401202), we get a palindrome (3472576752743).

The spelling of 2021043351541 in words is "two trillion, twenty-one billion, forty-three million, three hundred fifty-one thousand, five hundred forty-one".