1316256573201 has 4 divisors (see below), whose sum is σ = 1755008764272. Its totient is φ = 877504382132.

The previous prime is 1316256573197. The next prime is 1316256573209. The reversal of 1316256573201 is 1023756526131.

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 1316256573201 - 2² = 1316256573197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316256573209) 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, 219376095531 + ... + 219376095536.

It is an arithmetic number, because the mean of its divisors is an integer number (438752191068).

Almost surely, 2^{1316256573201} is an apocalyptic number.

It is an amenable number.

1316256573201 is a deficient number, since it is larger than the sum of its proper divisors (438752191071).

1316256573201 is an equidigital number, since it uses as much as digits as its factorization.

1316256573201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438752191070.

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 1316256573201 in words is "one trillion, three hundred sixteen billion, two hundred fifty-six million, five hundred seventy-three thousand, two hundred one".