21312301034 has 8 divisors (see below), whose sum is σ = 32418711648. Its totient is φ = 10506063820.

The previous prime is 21312301033. The next prime is 21312301037. The reversal of 21312301034 is 43010321312.

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 = 21312300997 and 21312301015.

It is not an unprimeable number, because it can be changed into a prime (21312301033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75043172 + ... + 75043455.

It is an arithmetic number, because the mean of its divisors is an integer number (4052338956).

Almost surely, 2^21312301034 is an apocalyptic number.

21312301034 is a deficient number, since it is larger than the sum of its proper divisors (11106410614).

21312301034 is a wasteful number, since it uses less digits than its factorization.

21312301034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150086700.

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

Adding to 21312301034 its reverse (43010321312), we get a palindrome (64322622346).

The spelling of 21312301034 in words is "twenty-one billion, three hundred twelve million, three hundred one thousand, thirty-four".