1310612856173 has 4 divisors (see below), whose sum is σ = 1310716042368. Its totient is φ = 1310509669980.

The previous prime is 1310612856169. The next prime is 1310612856187. The reversal of 1310612856173 is 3716582160131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1310612856173 - 2² = 1310612856169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310612858173) 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, 51574043 + ... + 51599448.

It is an arithmetic number, because the mean of its divisors is an integer number (327679010592).

Almost surely, 2^{1310612856173} is an apocalyptic number.

It is an amenable number.

1310612856173 is a deficient number, since it is larger than the sum of its proper divisors (103186195).

1310612856173 is a wasteful number, since it uses less digits than its factorization.

1310612856173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103186194.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 1310612856173 in words is "one trillion, three hundred ten billion, six hundred twelve million, eight hundred fifty-six thousand, one hundred seventy-three".