105310021343 has 4 divisors (see below), whose sum is σ = 105390968088. Its totient is φ = 105229074600.

The previous prime is 105310021339. The next prime is 105310021393. The reversal of 105310021343 is 343120013501.

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 105310021343 - 2² = 105310021339 is a prime.

It is a super-2 number, since 2×105310021343² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105310021303) 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, 40471421 + ... + 40474022.

It is an arithmetic number, because the mean of its divisors is an integer number (26347742022).

Almost surely, 2^105310021343 is an apocalyptic number.

105310021343 is a deficient number, since it is larger than the sum of its proper divisors (80946745).

105310021343 is an equidigital number, since it uses as much as digits as its factorization.

105310021343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80946744.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 105310021343 its reverse (343120013501), we get a palindrome (448430034844).

The spelling of 105310021343 in words is "one hundred five billion, three hundred ten million, twenty-one thousand, three hundred forty-three".