21230313122 has 8 divisors (see below), whose sum is σ = 31846087872. Its totient is φ = 10614950500.

The previous prime is 21230313121. The next prime is 21230313131. The reversal of 21230313122 is 22131303212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21230313094 and 21230313103.

It is not an unprimeable number, because it can be changed into a prime (21230313121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153347 + ... + 256857.

It is an arithmetic number, because the mean of its divisors is an integer number (3980760984).

Almost surely, 2^21230313122 is an apocalyptic number.

21230313122 is a deficient number, since it is larger than the sum of its proper divisors (10615774750).

21230313122 is a wasteful number, since it uses less digits than its factorization.

21230313122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206064.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21230313122 its reverse (22131303212), we get a palindrome (43361616334).

The spelling of 21230313122 in words is "twenty-one billion, two hundred thirty million, three hundred thirteen thousand, one hundred twenty-two".