21114401412443 has 4 divisors (see below), whose sum is σ = 21268521130920. Its totient is φ = 20960281693968.

The previous prime is 21114401412427. The next prime is 21114401412457. The reversal of 21114401412443 is 34421410441112.

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 21114401412443 - 2⁴ = 21114401412427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21114401412493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77059859033 + ... + 77059859306.

It is an arithmetic number, because the mean of its divisors is an integer number (5317130282730).

Almost surely, 2^{21114401412443} is an apocalyptic number.

21114401412443 is a deficient number, since it is larger than the sum of its proper divisors (154119718477).

21114401412443 is a wasteful number, since it uses less digits than its factorization.

21114401412443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154119718476.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 21114401412443 its reverse (34421410441112), we get a palindrome (55535811853555).

The spelling of 21114401412443 in words is "twenty-one trillion, one hundred fourteen billion, four hundred one million, four hundred twelve thousand, four hundred forty-three".