21032321240043 has 12 divisors (see below), whose sum is σ = 30384048313008. Its totient is φ = 14019688073040.

The previous prime is 21032321239999. The next prime is 21032321240069. The reversal of 21032321240043 is 34004212323012.

21032321240043 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 2 + 3 + 212 + 400 + 43 = 666.

It is not a de Polignac number, because 21032321240043 - 2¹⁰ = 21032321239019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21032321239989 and 21032321240016.

It is not an unprimeable number, because it can be changed into a prime (21032321245043) 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, 154880055 + ... + 155015792.

It is an arithmetic number, because the mean of its divisors is an integer number (2532004026084).

Almost surely, 2^{21032321240043} is an apocalyptic number.

21032321240043 is a deficient number, since it is larger than the sum of its proper divisors (9351727072965).

21032321240043 is a wasteful number, since it uses less digits than its factorization.

21032321240043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309903394 (or 309903391 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21032321240043 its reverse (34004212323012), we get a palindrome (55036533563055).

The spelling of 21032321240043 in words is "twenty-one trillion, thirty-two billion, three hundred twenty-one million, two hundred forty thousand, forty-three".