311424321523 has 16 divisors (see below), whose sum is σ = 357598537920. Its totient is φ = 265674157056.

The previous prime is 311424321521. The next prime is 311424321583. The reversal of 311424321523 is 325123424113.

It is not a de Polignac number, because 311424321523 - 2¹ = 311424321521 is a prime.

It is a super-4 number, since 4×311424321523⁴ (a number of 47 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311424321521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1226265 + ... + 1458277.

It is an arithmetic number, because the mean of its divisors is an integer number (22349908620).

Almost surely, 2^311424321523 is an apocalyptic number.

311424321523 is a deficient number, since it is larger than the sum of its proper divisors (46174216397).

311424321523 is a wasteful number, since it uses less digits than its factorization.

311424321523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232926.

The product of its digits is 17280, while the sum is 31.

Adding to 311424321523 its reverse (325123424113), we get a palindrome (636547745636).

The spelling of 311424321523 in words is "three hundred eleven billion, four hundred twenty-four million, three hundred twenty-one thousand, five hundred twenty-three".