1312132311 has 16 divisors (see below), whose sum is σ = 2221600000. Its totient is φ = 749789784.

The previous prime is 1312132271. The next prime is 1312132331. The reversal of 1312132311 is 1132312131.

It is not a de Polignac number, because 1312132311 - 2¹¹ = 1312130263 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 (1312132331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3471061 + ... + 3471438.

It is an arithmetic number, because the mean of its divisors is an integer number (138850000).

Almost surely, 2^1312132311 is an apocalyptic number.

1312132311 is a deficient number, since it is larger than the sum of its proper divisors (909467689).

1312132311 is an equidigital number, since it uses as much as digits as its factorization.

1312132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942515 (or 6942509 counting only the distinct ones).

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

The square root of 1312132311 is about 36223.3669197108. The cubic root of 1312132311 is about 1094.7775340889. Note that the first 3 decimals are identical.

Adding to 1312132311 its reverse (1132312131), we get a palindrome (2444444442).

The spelling of 1312132311 in words is "one billion, three hundred twelve million, one hundred thirty-two thousand, three hundred eleven".