21230006116 has 36 divisors (see below), whose sum is σ = 40909108240. Its totient is φ = 9632977200.

The previous prime is 21230006111. The next prime is 21230006131. The reversal of 21230006116 is 61160003212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (21230006111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237955 + ... + 314773.

Almost surely, 2^21230006116 is an apocalyptic number.

It is an amenable number.

21230006116 is a deficient number, since it is larger than the sum of its proper divisors (19679102124).

21230006116 is a wasteful number, since it uses less digits than its factorization.

21230006116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77416 (or 77403 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21230006116 its reverse (61160003212), we get a palindrome (82390009328).

The spelling of 21230006116 in words is "twenty-one billion, two hundred thirty million, six thousand, one hundred sixteen".