21414152311 has 4 divisors (see below), whose sum is σ = 21414685824. Its totient is φ = 21413618800.

The previous prime is 21414152303. The next prime is 21414152321. The reversal of 21414152311 is 11325141412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21414152311 - 2³ = 21414152303 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 (21414152321) 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 3 ways as a sum of consecutive naturals, for example, 201175 + ... + 288616.

It is an arithmetic number, because the mean of its divisors is an integer number (5353671456).

Almost surely, 2^21414152311 is an apocalyptic number.

21414152311 is a deficient number, since it is larger than the sum of its proper divisors (533513).

21414152311 is an equidigital number, since it uses as much as digits as its factorization.

21414152311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533512.

The product of its digits is 960, while the sum is 25.

Adding to 21414152311 its reverse (11325141412), we get a palindrome (32739293723).

The spelling of 21414152311 in words is "twenty-one billion, four hundred fourteen million, one hundred fifty-two thousand, three hundred eleven".