21301211300 has 36 divisors (see below), whose sum is σ = 46780557936. Its totient is φ = 8417824800.

The previous prime is 21301211279. The next prime is 21301211303. The reversal of 21301211300 is 311210312.

It is not an unprimeable number, because it can be changed into a prime (21301211303) 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 11 ways as a sum of consecutive naturals, for example, 1274906 + ... + 1291505.

Almost surely, 2^21301211300 is an apocalyptic number.

21301211300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21301211300 is an abundant number, since it is smaller than the sum of its proper divisors (25479346636).

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

21301211300 is a wasteful number, since it uses less digits than its factorization.

21301211300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566508 (or 2566501 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21301211300 its reverse (311210312), we get a palindrome (21612421612).

The spelling of 21301211300 in words is "twenty-one billion, three hundred one million, two hundred eleven thousand, three hundred".