1310248989281 has 4 divisors (see below), whose sum is σ = 1310437223364. Its totient is φ = 1310060755200.

The previous prime is 1310248989199. The next prime is 1310248989289. The reversal of 1310248989281 is 1829898420131.

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 1116912899281 + 193336090000 = 1056841^2 + 439700^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310248989281 - 2¹⁴ = 1310248972897 is a prime.

It is a super-2 number, since 2×1310248989281² (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 (1310248989289) 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, 94106600 + ... + 94120521.

It is an arithmetic number, because the mean of its divisors is an integer number (327609305841).

Almost surely, 2^{1310248989281} is an apocalyptic number.

It is an amenable number.

1310248989281 is a deficient number, since it is larger than the sum of its proper divisors (188234083).

1310248989281 is an equidigital number, since it uses as much as digits as its factorization.

1310248989281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188234082.

The product of its (nonzero) digits is 1990656, while the sum is 56.

The spelling of 1310248989281 in words is "one trillion, three hundred ten billion, two hundred forty-eight million, nine hundred eighty-nine thousand, two hundred eighty-one".