1312204663 has 24 divisors (see below), whose sum is σ = 1693474560. Its totient is φ = 1005142320.

The previous prime is 1312204661. The next prime is 1312204669. The reversal of 1312204663 is 3664022131.

It is not a de Polignac number, because 1312204663 - 2¹ = 1312204661 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 (1312204661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11170 + ... + 52432.

It is an arithmetic number, because the mean of its divisors is an integer number (70561440).

Almost surely, 2^1312204663 is an apocalyptic number.

1312204663 is a deficient number, since it is larger than the sum of its proper divisors (381269897).

1312204663 is a wasteful number, since it uses less digits than its factorization.

1312204663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41347 (or 41340 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1312204663 is about 36224.3655983097. The cubic root of 1312204663 is about 1094.7976560150.

Adding to 1312204663 its reverse (3664022131), we get a palindrome (4976226794).

The spelling of 1312204663 in words is "one billion, three hundred twelve million, two hundred four thousand, six hundred sixty-three".