21230002000134 has 24 divisors (see below), whose sum is σ = 45998522689392. Its totient is φ = 7076638868400.

The previous prime is 21230002000133. The next prime is 21230002000159. The reversal of 21230002000134 is 43100020003212.

21230002000134 is a `hidden beast` number, since 212 + 300 + 0 + 20 + 0 + 0 + 134 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230002000133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2497359 + ... + 6978309.

It is an arithmetic number, because the mean of its divisors is an integer number (1916605112058).

Almost surely, 2^{21230002000134} is an apocalyptic number.

21230002000134 is an abundant number, since it is smaller than the sum of its proper divisors (24768520689258).

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

21230002000134 is a wasteful number, since it uses less digits than its factorization.

21230002000134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744172 (or 4744169 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21230002000134 its reverse (43100020003212), we get a palindrome (64330022003346).

The spelling of 21230002000134 in words is "twenty-one trillion, two hundred thirty billion, two million, one hundred thirty-four", and thus it is an aban number.