321310103021312 has 18 divisors (see below), whose sum is σ = 641365088453208. Its totient is φ = 160655051510528.

The previous prime is 321310103021293. The next prime is 321310103021329. The reversal of 321310103021312 is 213120301013123.

It is a super-2 number, since 2×321310103021312² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627558794708 + ... + 627558795219.

It is an arithmetic number, because the mean of its divisors is an integer number (35631393802956).

Almost surely, 2^{321310103021312} is an apocalyptic number.

321310103021312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321310103021312 is a deficient number, since it is larger than the sum of its proper divisors (320054985431896).

321310103021312 is an equidigital number, since it uses as much as digits as its factorization.

321310103021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255117589943 (or 1255117589929 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 321310103021312 its reverse (213120301013123), we get a palindrome (534430404034435).

The spelling of 321310103021312 in words is "three hundred twenty-one trillion, three hundred ten billion, one hundred three million, twenty-one thousand, three hundred twelve".