1310672281721 has 8 divisors (see below), whose sum is σ = 1513931619744. Its totient is φ = 1121430829120.

The previous prime is 1310672281693. The next prime is 1310672281733. The reversal of 1310672281721 is 1271822760131.

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

It is not a de Polignac number, because 1310672281721 - 2²⁶ = 1310605172857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310672281781) 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 7 ways as a sum of consecutive naturals, for example, 3504471155 + ... + 3504471528.

It is an arithmetic number, because the mean of its divisors is an integer number (189241452468).

Almost surely, 2^{1310672281721} is an apocalyptic number.

1310672281721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1310672281721 is a deficient number, since it is larger than the sum of its proper divisors (203259338023).

1310672281721 is a wasteful number, since it uses less digits than its factorization.

1310672281721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008942711.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 1310672281721 in words is "one trillion, three hundred ten billion, six hundred seventy-two million, two hundred eighty-one thousand, seven hundred twenty-one".