21342130411 has 16 divisors (see below), whose sum is σ = 24651719680. Its totient is φ = 18097862400.

The previous prime is 21342130387. The next prime is 21342130421. The reversal of 21342130411 is 11403124312.

It is a cyclic number.

It is not a de Polignac number, because 21342130411 - 2⁵ = 21342130379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21342130421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2746750 + ... + 2754508.

It is an arithmetic number, because the mean of its divisors is an integer number (1540732480).

Almost surely, 2^21342130411 is an apocalyptic number.

21342130411 is a deficient number, since it is larger than the sum of its proper divisors (3309589269).

21342130411 is an equidigital number, since it uses as much as digits as its factorization.

21342130411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11914.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21342130411 its reverse (11403124312), we get a palindrome (32745254723).

The spelling of 21342130411 in words is "twenty-one billion, three hundred forty-two million, one hundred thirty thousand, four hundred eleven".