21030022134 has 48 divisors (see below), whose sum is σ = 49718021184. Its totient is φ = 6371362800.

The previous prime is 21030022093. The next prime is 21030022157. The reversal of 21030022134 is 43122003012.

21030022134 is a `hidden beast` number, since 210 + 300 + 22 + 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1277037 + ... + 1293399.

It is an arithmetic number, because the mean of its divisors is an integer number (1035792108).

Almost surely, 2^21030022134 is an apocalyptic number.

21030022134 is an abundant number, since it is smaller than the sum of its proper divisors (28687999050).

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

21030022134 is a wasteful number, since it uses less digits than its factorization.

21030022134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22873 (or 22870 counting only the distinct ones).

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

Adding to 21030022134 its reverse (43122003012), we get a palindrome (64152025146).

The spelling of 21030022134 in words is "twenty-one billion, thirty million, twenty-two thousand, one hundred thirty-four".