21301130004 has 96 divisors (see below), whose sum is σ = 63285497856. Its totient is φ = 5415031680.

The previous prime is 21301129907. The next prime is 21301130009. The reversal of 21301130004 is 40003110312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301130009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201819 + ... + 288674.

It is an arithmetic number, because the mean of its divisors is an integer number (659223936).

Almost surely, 2^21301130004 is an apocalyptic number.

It is an amenable number.

21301130004 is an abundant number, since it is smaller than the sum of its proper divisors (41984367852).

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

21301130004 is a wasteful number, since it uses less digits than its factorization.

21301130004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490565 (or 490563 counting only the distinct ones).

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

Adding to 21301130004 its reverse (40003110312), we get a palindrome (61304240316).

The spelling of 21301130004 in words is "twenty-one billion, three hundred one million, one hundred thirty thousand, four".