21401242300 has 18 divisors (see below), whose sum is σ = 46440696008. Its totient is φ = 8560496880.

The previous prime is 21401242297. The next prime is 21401242301. The reversal of 21401242300 is 324210412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21401242301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107006112 + ... + 107006311.

Almost surely, 2^21401242300 is an apocalyptic number.

21401242300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21401242300 is an abundant number, since it is smaller than the sum of its proper divisors (25039453708).

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

21401242300 is a wasteful number, since it uses less digits than its factorization.

21401242300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214012437 (or 214012430 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21401242300 its reverse (324210412), we get a palindrome (21725452712).

The spelling of 21401242300 in words is "twenty-one billion, four hundred one million, two hundred forty-two thousand, three hundred".