10343031321 has 16 divisors (see below), whose sum is σ = 15786291200. Its totient is φ = 5900748048.

The previous prime is 10343031271. The next prime is 10343031331. The reversal of 10343031321 is 12313034301.

It is not a de Polignac number, because 10343031321 - 2²² = 10338837017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10343031331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384841 + ... + 410838.

It is an arithmetic number, because the mean of its divisors is an integer number (986643200).

Almost surely, 2^10343031321 is an apocalyptic number.

It is an amenable number.

10343031321 is a deficient number, since it is larger than the sum of its proper divisors (5443259879).

10343031321 is an equidigital number, since it uses as much as digits as its factorization.

10343031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796308.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 10343031321 its reverse (12313034301), we get a palindrome (22656065622).

The spelling of 10343031321 in words is "ten billion, three hundred forty-three million, thirty-one thousand, three hundred twenty-one".