312031302111 has 16 divisors (see below), whose sum is σ = 465212988000. Its totient is φ = 206695891584.

The previous prime is 312031302049. The next prime is 312031302139. The reversal of 312031302111 is 111203130213.

312031302111 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 312031302111 - 2⁷ = 312031301983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031302161) 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, 36800586 + ... + 36809063.

It is an arithmetic number, because the mean of its divisors is an integer number (29075811750).

Almost surely, 2^312031302111 is an apocalyptic number.

312031302111 is a deficient number, since it is larger than the sum of its proper divisors (153181685889).

312031302111 is a wasteful number, since it uses less digits than its factorization.

312031302111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73609815 (or 73609809 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 312031302111 its reverse (111203130213), we get a palindrome (423234432324).

The spelling of 312031302111 in words is "three hundred twelve billion, thirty-one million, three hundred two thousand, one hundred eleven".