1315069255081 has 4 divisors (see below), whose sum is σ = 1316848781200. Its totient is φ = 1313289728964.

The previous prime is 1315069255079. The next prime is 1315069255117. The reversal of 1315069255081 is 1805529605131.

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 1315069255081 - 2¹ = 1315069255079 is a prime.

It is a super-2 number, since 2×1315069255081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315069255481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889761951 + ... + 889763428.

It is an arithmetic number, because the mean of its divisors is an integer number (329212195300).

Almost surely, 2^{1315069255081} is an apocalyptic number.

It is an amenable number.

1315069255081 is a deficient number, since it is larger than the sum of its proper divisors (1779526119).

1315069255081 is an equidigital number, since it uses as much as digits as its factorization.

1315069255081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779526118.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 1315069255081 in words is "one trillion, three hundred fifteen billion, sixty-nine million, two hundred fifty-five thousand, eighty-one".