1312134404 has 24 divisors (see below), whose sum is σ = 2695197120. Its totient is φ = 547144416.

The previous prime is 1312134403. The next prime is 1312134419. The reversal of 1312134404 is 4044312131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312134404.

It is not an unprimeable number, because it can be changed into a prime (1312134401) 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 7 ways as a sum of consecutive naturals, for example, 632234 + ... + 634305.

It is an arithmetic number, because the mean of its divisors is an integer number (112299880).

Almost surely, 2^1312134404 is an apocalyptic number.

1312134404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1312134404 is an abundant number, since it is smaller than the sum of its proper divisors (1383062716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312134404 is a wasteful number, since it uses less digits than its factorization.

1312134404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266587 (or 1266585 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1312134404 is about 36223.3958098906. The cubic root of 1312134404 is about 1094.7781161867.

Adding to 1312134404 its reverse (4044312131), we get a palindrome (5356446535).

The spelling of 1312134404 in words is "one billion, three hundred twelve million, one hundred thirty-four thousand, four hundred four".