311444120042225 has 36 divisors (see below), whose sum is σ = 414078167528784. Its totient is φ = 232307521178880.

The previous prime is 311444120042207. The next prime is 311444120042257. The reversal of 311444120042225 is 522240021444113.

It is not a de Polignac number, because 311444120042225 - 2²⁰ = 311444118993649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 200658947 + ... + 202205096.

It is an arithmetic number, because the mean of its divisors is an integer number (11502171320244).

Almost surely, 2^{311444120042225} is an apocalyptic number.

It is an amenable number.

311444120042225 is a deficient number, since it is larger than the sum of its proper divisors (102634047486559).

311444120042225 is a wasteful number, since it uses less digits than its factorization.

311444120042225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402864194 (or 402864172 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 311444120042225 its reverse (522240021444113), we get a palindrome (833684141486338).

The spelling of 311444120042225 in words is "three hundred eleven trillion, four hundred forty-four billion, one hundred twenty million, forty-two thousand, two hundred twenty-five".