1310134321 has 4 divisors (see below), whose sum is σ = 1311142644. Its totient is φ = 1309126000.

The previous prime is 1310134313. The next prime is 1310134337. The reversal of 1310134321 is 1234310131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 460703296 + 849431025 = 21464^2 + 29145^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310134321 - 2³ = 1310134313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310134361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502210 + ... + 504811.

It is an arithmetic number, because the mean of its divisors is an integer number (327785661).

Almost surely, 2^1310134321 is an apocalyptic number.

It is an amenable number.

1310134321 is a deficient number, since it is larger than the sum of its proper divisors (1008323).

1310134321 is a wasteful number, since it uses less digits than its factorization.

1310134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008322.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1310134321 is about 36195.7776681204. Note that the first 3 decimals coincide. The cubic root of 1310134321 is about 1094.2215775189.

Adding to 1310134321 its reverse (1234310131), we get a palindrome (2544444452).

The spelling of 1310134321 in words is "one billion, three hundred ten million, one hundred thirty-four thousand, three hundred twenty-one".