1024340443021 has 4 divisors (see below), whose sum is σ = 1170674792032. Its totient is φ = 878006094012.

The previous prime is 1024340442997. The next prime is 1024340443033. The reversal of 1024340443021 is 1203440434201.

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 a cyclic number.

It is not a de Polignac number, because 1024340443021 - 2²¹ = 1024338345869 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 (1024340473021) 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, 73167174495 + ... + 73167174508.

It is an arithmetic number, because the mean of its divisors is an integer number (292668698008).

Almost surely, 2^{1024340443021} is an apocalyptic number.

It is an amenable number.

1024340443021 is a deficient number, since it is larger than the sum of its proper divisors (146334349011).

1024340443021 is an equidigital number, since it uses as much as digits as its factorization.

1024340443021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146334349010.

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

Adding to 1024340443021 its reverse (1203440434201), we get a palindrome (2227780877222).

The spelling of 1024340443021 in words is "one trillion, twenty-four billion, three hundred forty million, four hundred forty-three thousand, twenty-one".