21342341024 has 24 divisors (see below), whose sum is σ = 42127464960. Its totient is φ = 10643302336.

The previous prime is 21342340993. The next prime is 21342341051. The reversal of 21342341024 is 42014324312.

It is a junction number, because it is equal to n+sod(n) for n = 21342340984 and 21342341002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858434 + ... + 882945.

It is an arithmetic number, because the mean of its divisors is an integer number (1755311040).

Almost surely, 2^21342341024 is an apocalyptic number.

It is an amenable number.

21342341024 is a deficient number, since it is larger than the sum of its proper divisors (20785123936).

21342341024 is a wasteful number, since it uses less digits than its factorization.

21342341024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741772 (or 1741764 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21342341024 its reverse (42014324312), we get a palindrome (63356665336).

The spelling of 21342341024 in words is "twenty-one billion, three hundred forty-two million, three hundred forty-one thousand, twenty-four".