311312354302 has 4 divisors (see below), whose sum is σ = 466968531456. Its totient is φ = 155656177150.

The previous prime is 311312354183. The next prime is 311312354303. The reversal of 311312354302 is 203453213113.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311312354303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77828088574 + ... + 77828088577.

It is an arithmetic number, because the mean of its divisors is an integer number (116742132864).

Almost surely, 2^311312354302 is an apocalyptic number.

311312354302 is a deficient number, since it is larger than the sum of its proper divisors (155656177154).

311312354302 is a wasteful number, since it uses less digits than its factorization.

311312354302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155656177153.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 311312354302 its reverse (203453213113), we get a palindrome (514765567415).

The spelling of 311312354302 in words is "three hundred eleven billion, three hundred twelve million, three hundred fifty-four thousand, three hundred two".