21300303034 has 16 divisors (see below), whose sum is σ = 33847498728. Its totient is φ = 10018455552.

The previous prime is 21300302999. The next prime is 21300303107. The reversal of 21300303034 is 43030300312.

It can be written as a sum of positive squares in 4 ways, for example, as 15875244009 + 5425059025 = 125997^2 + 73655^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 96327 + ... + 227770.

Almost surely, 2^21300303034 is an apocalyptic number.

21300303034 is a deficient number, since it is larger than the sum of its proper divisors (12547195694).

21300303034 is a wasteful number, since it uses less digits than its factorization.

21300303034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326049.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21300303034 its reverse (43030300312), we get a palindrome (64330603346).

The spelling of 21300303034 in words is "twenty-one billion, three hundred million, three hundred three thousand, thirty-four".