1312203134 has 12 divisors (see below), whose sum is σ = 2163508872. Its totient is φ = 596455860.

The previous prime is 1312203131. The next prime is 1312203143. The reversal of 1312203134 is 4313022131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312203131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2710922 + ... + 2711405.

It is an arithmetic number, because the mean of its divisors is an integer number (180292406).

Almost surely, 2^1312203134 is an apocalyptic number.

1312203134 is a deficient number, since it is larger than the sum of its proper divisors (851305738).

1312203134 is a wasteful number, since it uses less digits than its factorization.

1312203134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5422351 (or 5422340 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1312203134 is about 36224.3444937241. The cubic root of 1312203134 is about 1094.7972307901.

Adding to 1312203134 its reverse (4313022131), we get a palindrome (5625225265).

The spelling of 1312203134 in words is "one billion, three hundred twelve million, two hundred three thousand, one hundred thirty-four".