21030334324 has 12 divisors (see below), whose sum is σ = 36894866148. Its totient is φ = 10488944000.

The previous prime is 21030334271. The next prime is 21030334327. The reversal of 21030334324 is 42343303012.

It can be written as a sum of positive squares in 2 ways, for example, as 19974734224 + 1055600100 = 141332^2 + 32490^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030334327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6553987 + ... + 6557194.

It is an arithmetic number, because the mean of its divisors is an integer number (3074572179).

Almost surely, 2^21030334324 is an apocalyptic number.

It is an amenable number.

21030334324 is a deficient number, since it is larger than the sum of its proper divisors (15864531824).

21030334324 is a wasteful number, since it uses less digits than its factorization.

21030334324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13111586 (or 13111584 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21030334324 its reverse (42343303012), we get a palindrome (63373637336).

The spelling of 21030334324 in words is "twenty-one billion, thirty million, three hundred thirty-four thousand, three hundred twenty-four".