311225421441113 has 4 divisors (see below), whose sum is σ = 311233569381540. Its totient is φ = 311217273500688.

The previous prime is 311225421441083. The next prime is 311225421441167. The reversal of 311225421441113 is 311144124522113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160327586174809 + 150897835266304 = 12662053^2 + 12284048^2 .

It is a cyclic number.

It is not a de Polignac number, because 311225421441113 - 2¹⁶ = 311225421375577 is a prime.

It is a super-2 number, since 2×311225421441113² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311275421441113) 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, 4073912918 + ... + 4073989311.

It is an arithmetic number, because the mean of its divisors is an integer number (77808392345385).

Almost surely, 2^{311225421441113} is an apocalyptic number.

It is an amenable number.

311225421441113 is a deficient number, since it is larger than the sum of its proper divisors (8147940427).

311225421441113 is an equidigital number, since it uses as much as digits as its factorization.

311225421441113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8147940426.

The product of its digits is 23040, while the sum is 35.

Adding to 311225421441113 its reverse (311144124522113), we get a palindrome (622369545963226).

The spelling of 311225421441113 in words is "three hundred eleven trillion, two hundred twenty-five billion, four hundred twenty-one million, four hundred forty-one thousand, one hundred thirteen".