21340030002 has 64 divisors (see below), whose sum is σ = 43621908480. Its totient is φ = 6958512000.

The previous prime is 21340030001. The next prime is 21340030003. The reversal of 21340030002 is 20003004312.

It is an interprime number because it is at equal distance from previous prime (21340030001) and next prime (21340030003).

It is not an unprimeable number, because it can be changed into a prime (21340030001) 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 31 ways as a sum of consecutive naturals, for example, 30882477 + ... + 30883167.

It is an arithmetic number, because the mean of its divisors is an integer number (681592320).

Almost surely, 2^21340030002 is an apocalyptic number.

21340030002 is an abundant number, since it is smaller than the sum of its proper divisors (22281878478).

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

21340030002 is a wasteful number, since it uses less digits than its factorization.

21340030002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 21340030002 its reverse (20003004312), we get a palindrome (41343034314).

The spelling of 21340030002 in words is "twenty-one billion, three hundred forty million, thirty thousand, two".