312311132311 has 4 divisors (see below), whose sum is σ = 312313797712. Its totient is φ = 312308466912.

The previous prime is 312311132293. The next prime is 312311132351. The reversal of 312311132311 is 113231113213.

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

It is a cyclic number.

It is not a de Polignac number, because 312311132311 - 2¹³ = 312311124119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312311132351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148451 + ... + 1394116.

It is an arithmetic number, because the mean of its divisors is an integer number (78078449428).

Almost surely, 2^312311132311 is an apocalyptic number.

312311132311 is a deficient number, since it is larger than the sum of its proper divisors (2665401).

312311132311 is a wasteful number, since it uses less digits than its factorization.

312311132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665400.

The product of its digits is 324, while the sum is 22.

Adding to 312311132311 its reverse (113231113213), we get a palindrome (425542245524).

The spelling of 312311132311 in words is "three hundred twelve billion, three hundred eleven million, one hundred thirty-two thousand, three hundred eleven".