1312432205 has 32 divisors (see below), whose sum is σ = 1816742400. Its totient is φ = 891585792.

The previous prime is 1312432169. The next prime is 1312432211. The reversal of 1312432205 is 5022342131.

It is a cyclic number.

It is not a de Polignac number, because 1312432205 - 2⁸ = 1312431949 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2989376 + ... + 2989814.

It is an arithmetic number, because the mean of its divisors is an integer number (56773200).

Almost surely, 2^1312432205 is an apocalyptic number.

It is an amenable number.

1312432205 is a deficient number, since it is larger than the sum of its proper divisors (504310195).

1312432205 is a wasteful number, since it uses less digits than its factorization.

1312432205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1312432205 is about 36227.5061934989. The cubic root of 1312432205 is about 1094.8609332506.

Adding to 1312432205 its reverse (5022342131), we get a palindrome (6334774336).

The spelling of 1312432205 in words is "one billion, three hundred twelve million, four hundred thirty-two thousand, two hundred five".