21301013004 has 48 divisors (see below), whose sum is σ = 50517841920. Its totient is φ = 6984506880.

The previous prime is 21301012991. The next prime is 21301013009. The reversal of 21301013004 is 40031010312.

It is not an unprimeable number, because it can be changed into a prime (21301013009) 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 15 ways as a sum of consecutive naturals, for example, 215452 + ... + 298364.

It is an arithmetic number, because the mean of its divisors is an integer number (1052455040).

Almost surely, 2^21301013004 is an apocalyptic number.

It is an amenable number.

21301013004 is an abundant number, since it is smaller than the sum of its proper divisors (29216828916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21301013004 is a wasteful number, since it uses less digits than its factorization.

21301013004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83270 (or 83268 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21301013004 its reverse (40031010312), we get a palindrome (61332023316).

The spelling of 21301013004 in words is "twenty-one billion, three hundred one million, thirteen thousand, four".