1320456131465 has 8 divisors (see below), whose sum is σ = 1586055020928. Its totient is φ = 1055359796400.

The previous prime is 1320456131333. The next prime is 1320456131471. The reversal of 1320456131465 is 5641316540231.

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

It is not a de Polignac number, because 1320456131465 - 2¹⁸ = 1320455869321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 125632817 + ... + 125643326.

It is an arithmetic number, because the mean of its divisors is an integer number (198256877616).

Almost surely, 2^{1320456131465} is an apocalyptic number.

It is an amenable number.

1320456131465 is a deficient number, since it is larger than the sum of its proper divisors (265598889463).

1320456131465 is a wasteful number, since it uses less digits than its factorization.

1320456131465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251277199.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1320456131465 in words is "one trillion, three hundred twenty billion, four hundred fifty-six million, one hundred thirty-one thousand, four hundred sixty-five".