21301254004 has 12 divisors (see below), whose sum is σ = 37278577504. Its totient is φ = 10650231864.

The previous prime is 21301253999. The next prime is 21301254011. The reversal of 21301254004 is 40045210312.

It is a congruent number.

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, 46129 + ... + 211495.

Almost surely, 2^21301254004 is an apocalyptic number.

It is an amenable number.

21301254004 is a deficient number, since it is larger than the sum of its proper divisors (15977323500).

21301254004 is a wasteful number, since it uses less digits than its factorization.

21301254004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197574 (or 197572 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 21301254004 its reverse (40045210312), we get a palindrome (61346464316).

The spelling of 21301254004 in words is "twenty-one billion, three hundred one million, two hundred fifty-four thousand, four".