21130334410 has 16 divisors (see below), whose sum is σ = 38962275912. Its totient is φ = 8245984000.

The previous prime is 21130334383. The next prime is 21130334413. The reversal of 21130334410 is 1443303112.

It can be written as a sum of positive squares in 4 ways, for example, as 12133242801 + 8997091609 = 110151^2 + 94853^2 .

It is not an unprimeable number, because it can be changed into a prime (21130334413) 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 7 ways as a sum of consecutive naturals, for example, 25768291 + ... + 25769110.

Almost surely, 2^21130334410 is an apocalyptic number.

21130334410 is a deficient number, since it is larger than the sum of its proper divisors (17831941502).

21130334410 is a wasteful number, since it uses less digits than its factorization.

21130334410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51537449.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21130334410 its reverse (1443303112), we get a palindrome (22573637522).

The spelling of 21130334410 in words is "twenty-one billion, one hundred thirty million, three hundred thirty-four thousand, four hundred ten".