110312311321 has 2 divisors, whose sum is σ = 110312311322. Its totient is φ = 110312311320.

The previous prime is 110312311297. The next prime is 110312311357. The reversal of 110312311321 is 123113213011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86777376400 + 23534934921 = 294580^2 + 153411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110312311321 is a prime.

It is not a weakly prime, because it can be changed into another prime (110312311391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55156155660 + 55156155661.

It is an arithmetic number, because the mean of its divisors is an integer number (55156155661).

Almost surely, 2^110312311321 is an apocalyptic number.

It is an amenable number.

110312311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

110312311321 is an equidigital number, since it uses as much as digits as its factorization.

110312311321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 110312311321 its reverse (123113213011), we get a palindrome (233425524332).

The spelling of 110312311321 in words is "one hundred ten billion, three hundred twelve million, three hundred eleven thousand, three hundred twenty-one".