21134323342300 has 72 divisors (see below), whose sum is σ = 52893976409120. Its totient is φ = 7179576134400.

The previous prime is 21134323342289. The next prime is 21134323342309. The reversal of 21134323342300 is 324332343112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21134323342309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138418611 + ... + 138571210.

Almost surely, 2^{21134323342300} is an apocalyptic number.

21134323342300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21134323342300 is an abundant number, since it is smaller than the sum of its proper divisors (31759653066820).

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

21134323342300 is a wasteful number, since it uses less digits than its factorization.

21134323342300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276989951 (or 276989944 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 21134323342300 its reverse (324332343112), we get a palindrome (21458655685412).

The spelling of 21134323342300 in words is "twenty-one trillion, one hundred thirty-four billion, three hundred twenty-three million, three hundred forty-two thousand, three hundred".