21150034262330 has 16 divisors (see below), whose sum is σ = 40309477065000. Its totient is φ = 7962365839872.

The previous prime is 21150034262297. The next prime is 21150034262339. The reversal of 21150034262330 is 3326243005112.

It can be written as a sum of positive squares in 4 ways, for example, as 21148418785081 + 1615477249 = 4598741^2 + 40193^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21150034262339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62205982955 + ... + 62205983294.

Almost surely, 2^{21150034262330} is an apocalyptic number.

21150034262330 is a deficient number, since it is larger than the sum of its proper divisors (19159442802670).

21150034262330 is a wasteful number, since it uses less digits than its factorization.

21150034262330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124411966273.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 21150034262330 its reverse (3326243005112), we get a palindrome (24476277267442).

The spelling of 21150034262330 in words is "twenty-one trillion, one hundred fifty billion, thirty-four million, two hundred sixty-two thousand, three hundred thirty".