21514445211343 has 8 divisors (see below), whose sum is σ = 24593104040960. Its totient is φ = 18437078045880.

The previous prime is 21514445211299. The next prime is 21514445211353. The reversal of 21514445211343 is 34311254441512.

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 21514445211343 - 2²⁵ = 21514411656911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21514445211296 and 21514445211305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514445211353) 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, 322880343 + ... + 322946968.

It is an arithmetic number, because the mean of its divisors is an integer number (3074138005120).

Almost surely, 2^{21514445211343} is an apocalyptic number.

21514445211343 is a deficient number, since it is larger than the sum of its proper divisors (3078658829617).

21514445211343 is an equidigital number, since it uses as much as digits as its factorization.

21514445211343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645832077.

The product of its digits is 230400, while the sum is 40.

Adding to 21514445211343 its reverse (34311254441512), we get a palindrome (55825699652855).

The spelling of 21514445211343 in words is "twenty-one trillion, five hundred fourteen billion, four hundred forty-five million, two hundred eleven thousand, three hundred forty-three".