311440344220023 has 16 divisors (see below), whose sum is σ = 424182142272000. Its totient is φ = 203196929395680.

The previous prime is 311440344219937. The next prime is 311440344220037. The reversal of 311440344220023 is 320022443044113.

It is not a de Polignac number, because 311440344220023 - 2¹⁰ = 311440344218999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311440344220073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4275993243 + ... + 4276066076.

It is an arithmetic number, because the mean of its divisors is an integer number (26511383892000).

Almost surely, 2^{311440344220023} is an apocalyptic number.

311440344220023 is a deficient number, since it is larger than the sum of its proper divisors (112741798051977).

311440344220023 is a wasteful number, since it uses less digits than its factorization.

311440344220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8552059582.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 311440344220023 its reverse (320022443044113), we get a palindrome (631462787264136).

The spelling of 311440344220023 in words is "three hundred eleven trillion, four hundred forty billion, three hundred forty-four million, two hundred twenty thousand, twenty-three".