1312140311 has 2 divisors, whose sum is σ = 1312140312. Its totient is φ = 1312140310.

The previous prime is 1312140307. The next prime is 1312140329. The reversal of 1312140311 is 1130412131.

It is a weak prime.

It is an emirp because it is prime and its reverse (1130412131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312140311 - 2² = 1312140307 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312140311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312140331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656070155 + 656070156.

It is an arithmetic number, because the mean of its divisors is an integer number (656070156).

Almost surely, 2^1312140311 is an apocalyptic number.

1312140311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312140311 is an equidigital number, since it uses as much as digits as its factorization.

1312140311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1312140311 is about 36223.4773455007. The cubic root of 1312140311 is about 1094.7797590176.

Adding to 1312140311 its reverse (1130412131), we get a palindrome (2442552442).

The spelling of 1312140311 in words is "one billion, three hundred twelve million, one hundred forty thousand, three hundred eleven".