21134055130 has 16 divisors (see below), whose sum is σ = 38293231104. Its totient is φ = 8397637200.

The previous prime is 21134055127. The next prime is 21134055139. The reversal of 21134055130 is 3155043112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21134055095 and 21134055104.

It is not an unprimeable number, because it can be changed into a prime (21134055139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6996522 + ... + 6999541.

It is an arithmetic number, because the mean of its divisors is an integer number (2393326944).

Almost surely, 2^21134055130 is an apocalyptic number.

21134055130 is a deficient number, since it is larger than the sum of its proper divisors (17159175974).

21134055130 is a wasteful number, since it uses less digits than its factorization.

21134055130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13996221.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 21134055130 its reverse (3155043112), we get a palindrome (24289098242).

The spelling of 21134055130 in words is "twenty-one billion, one hundred thirty-four million, fifty-five thousand, one hundred thirty".