21324214300 has 18 divisors (see below), whose sum is σ = 46273545248. Its totient is φ = 8529685680.

The previous prime is 21324214259. The next prime is 21324214309. The reversal of 21324214300 is 341242312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21324214309) 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, 106620972 + ... + 106621171.

Almost surely, 2^21324214300 is an apocalyptic number.

21324214300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21324214300 is an abundant number, since it is smaller than the sum of its proper divisors (24949330948).

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

21324214300 is a wasteful number, since it uses less digits than its factorization.

21324214300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213242157 (or 213242150 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21324214300 its reverse (341242312), we get a palindrome (21665456612).

The spelling of 21324214300 in words is "twenty-one billion, three hundred twenty-four million, two hundred fourteen thousand, three hundred".