21324140311 has 8 divisors (see below), whose sum is σ = 21822223104. Its totient is φ = 20827906680.

The previous prime is 21324140309. The next prime is 21324140353. The reversal of 21324140311 is 11304142312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21324140311 - 2¹ = 21324140309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21324140381) 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, 438945 + ... + 485098.

It is an arithmetic number, because the mean of its divisors is an integer number (2727777888).

Almost surely, 2^21324140311 is an apocalyptic number.

21324140311 is a deficient number, since it is larger than the sum of its proper divisors (498082793).

21324140311 is an equidigital number, since it uses as much as digits as its factorization.

21324140311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924581.

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

Adding to 21324140311 its reverse (11304142312), we get a palindrome (32628282623).

The spelling of 21324140311 in words is "twenty-one billion, three hundred twenty-four million, one hundred forty thousand, three hundred eleven".