21310023034343 has 8 divisors (see below), whose sum is σ = 21605801313600. Its totient is φ = 21014895534048.

The previous prime is 21310023034337. The next prime is 21310023034351. The reversal of 21310023034343 is 34343032001312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21310023034343 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 (21310023034303) 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, 162628796 + ... + 162759777.

It is an arithmetic number, because the mean of its divisors is an integer number (2700725164200).

Almost surely, 2^{21310023034343} is an apocalyptic number.

21310023034343 is a deficient number, since it is larger than the sum of its proper divisors (295778279257).

21310023034343 is an equidigital number, since it uses as much as digits as its factorization.

21310023034343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325389481.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21310023034343 its reverse (34343032001312), we get a palindrome (55653055035655).

The spelling of 21310023034343 in words is "twenty-one trillion, three hundred ten billion, twenty-three million, thirty-four thousand, three hundred forty-three".