21342001004 has 12 divisors (see below), whose sum is σ = 37642585344. Its totient is φ = 10586976624.

The previous prime is 21342000961. The next prime is 21342001007. The reversal of 21342001004 is 40010024312.

It is not an unprimeable number, because it can be changed into a prime (21342001007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21005399 + ... + 21006414.

It is an arithmetic number, because the mean of its divisors is an integer number (3136882112).

Almost surely, 2^21342001004 is an apocalyptic number.

It is an amenable number.

21342001004 is a deficient number, since it is larger than the sum of its proper divisors (16300584340).

21342001004 is a wasteful number, since it uses less digits than its factorization.

21342001004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42011944 (or 42011942 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21342001004 its reverse (40010024312), we get a palindrome (61352025316).

The spelling of 21342001004 in words is "twenty-one billion, three hundred forty-two million, one thousand, four".