312043502111 has 16 divisors (see below), whose sum is σ = 342662348160. Its totient is φ = 281805955680.

The previous prime is 312043502093. The next prime is 312043502167. The reversal of 312043502111 is 111205340213.

It is a cyclic number.

It is not a de Polignac number, because 312043502111 - 2²² = 312039307807 is a prime.

It is a super-2 number, since 2×312043502111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312043502611) 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 in 15 ways as a sum of consecutive naturals, for example, 874820 + ... + 1178726.

It is an arithmetic number, because the mean of its divisors is an integer number (21416396760).

Almost surely, 2^312043502111 is an apocalyptic number.

312043502111 is a deficient number, since it is larger than the sum of its proper divisors (30618846049).

312043502111 is a wasteful number, since it uses less digits than its factorization.

312043502111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304534.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 312043502111 its reverse (111205340213), we get a palindrome (423248842324).

The spelling of 312043502111 in words is "three hundred twelve billion, forty-three million, five hundred two thousand, one hundred eleven".