21231441140410 has 16 divisors (see below), whose sum is σ = 38216765867400. Its totient is φ = 8492538275136.

The previous prime is 21231441140309. The next prime is 21231441140423. The reversal of 21231441140410 is 1404114413212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4811578247961 + 16419862892449 = 2193531^2 + 4052143^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380005 + ... + 6937384.

Almost surely, 2^{21231441140410} is an apocalyptic number.

21231441140410 is a deficient number, since it is larger than the sum of its proper divisors (16985324726990).

21231441140410 is a wasteful number, since it uses less digits than its factorization.

21231441140410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9545265.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 21231441140410 its reverse (1404114413212), we get a palindrome (22635555553622).

The spelling of 21231441140410 in words is "twenty-one trillion, two hundred thirty-one billion, four hundred forty-one million, one hundred forty thousand, four hundred ten".