312132231311 has 2 divisors, whose sum is σ = 312132231312. Its totient is φ = 312132231310.

The previous prime is 312132231293. The next prime is 312132231349. The reversal of 312132231311 is 113132231213.

It is a weak prime.

It is an emirp because it is prime and its reverse (113132231213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312132231311 - 2²² = 312128037007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312132231391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156066115655 + 156066115656.

It is an arithmetic number, because the mean of its divisors is an integer number (156066115656).

Almost surely, 2^312132231311 is an apocalyptic number.

312132231311 is a deficient number, since it is larger than the sum of its proper divisors (1).

312132231311 is an equidigital number, since it uses as much as digits as its factorization.

312132231311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

Adding to 312132231311 its reverse (113132231213), we get a palindrome (425264462524).

The spelling of 312132231311 in words is "three hundred twelve billion, one hundred thirty-two million, two hundred thirty-one thousand, three hundred eleven".