1312132401 has 12 divisors (see below), whose sum is σ = 1939379728. Its totient is φ = 854411544.

The previous prime is 1312132397. The next prime is 1312132427. The reversal of 1312132401 is 1042312131.

1312132401 is a `hidden beast` number, since 131 + 2 + 132 + 401 = 666.

It is not a de Polignac number, because 1312132401 - 2² = 1312132397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1312132901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1694875 + ... + 1695648.

Almost surely, 2^1312132401 is an apocalyptic number.

It is an amenable number.

1312132401 is a deficient number, since it is larger than the sum of its proper divisors (627247327).

1312132401 is a wasteful number, since it uses less digits than its factorization.

1312132401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390572 (or 3390569 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1312132401 is about 36223.3681620028. The cubic root of 1312132401 is about 1094.7775591194. Note that the first 3 decimals are identical.

Adding to 1312132401 its reverse (1042312131), we get a palindrome (2354444532).

The spelling of 1312132401 in words is "one billion, three hundred twelve million, one hundred thirty-two thousand, four hundred one".