1310723013 has 8 divisors (see below), whose sum is σ = 1747819008. Its totient is φ = 873721184.

The previous prime is 1310723003. The next prime is 1310723021. The reversal of 1310723013 is 3103270131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1310723013 - 2⁸ = 1310722757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310723003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20956 + ... + 55322.

It is an arithmetic number, because the mean of its divisors is an integer number (218477376).

Almost surely, 2^1310723013 is an apocalyptic number.

It is an amenable number.

1310723013 is a deficient number, since it is larger than the sum of its proper divisors (437095995).

1310723013 is a wasteful number, since it uses less digits than its factorization.

1310723013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47083.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 1310723013 is about 36203.9088083041. The cubic root of 1310723013 is about 1094.3854444397.

Adding to 1310723013 its reverse (3103270131), we get a palindrome (4413993144).

The spelling of 1310723013 in words is "one billion, three hundred ten million, seven hundred twenty-three thousand, thirteen".