1312132113 has 24 divisors (see below), whose sum is σ = 1910656800. Its totient is φ = 867694464.

The previous prime is 1312132111. The next prime is 1312132117. The reversal of 1312132113 is 3112312131.

It is not a de Polignac number, because 1312132113 - 2¹ = 1312132111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312132111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 880473 + ... + 881961.

It is an arithmetic number, because the mean of its divisors is an integer number (79610700).

Almost surely, 2^1312132113 is an apocalyptic number.

It is an amenable number.

1312132113 is a deficient number, since it is larger than the sum of its proper divisors (598524687).

1312132113 is a wasteful number, since it uses less digits than its factorization.

1312132113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221 (or 2218 counting only the distinct ones).

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

The square root of 1312132113 is about 36223.3641866683. The cubic root of 1312132113 is about 1094.7774790218. Note that the first 3 decimals are identical.

Adding to 1312132113 its reverse (3112312131), we get a palindrome (4424444244).

The spelling of 1312132113 in words is "one billion, three hundred twelve million, one hundred thirty-two thousand, one hundred thirteen".