10312231321 has 4 divisors (see below), whose sum is σ = 11785407232. Its totient is φ = 8839055412.

The previous prime is 10312231301. The next prime is 10312231327. The reversal of 10312231321 is 12313221301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12313221301 = 19 ⋅648064279.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10312231321 is a prime.

It is a super-2 number, since 2×10312231321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10312231327) 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, 736587945 + ... + 736587958.

It is an arithmetic number, because the mean of its divisors is an integer number (2946351808).

Almost surely, 2^10312231321 is an apocalyptic number.

It is an amenable number.

10312231321 is a deficient number, since it is larger than the sum of its proper divisors (1473175911).

10312231321 is an equidigital number, since it uses as much as digits as its factorization.

10312231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473175910.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10312231321 its reverse (12313221301), we get a palindrome (22625452622).

The spelling of 10312231321 in words is "ten billion, three hundred twelve million, two hundred thirty-one thousand, three hundred twenty-one".