1312410451365 has 56 divisors (see below), whose sum is σ = 2542894011000. Its totient is φ = 646109737344.

The previous prime is 1312410451361. The next prime is 1312410451397. The reversal of 1312410451365 is 5631540142131.

1312410451365 is a `hidden beast` number, since 1 + 3 + 1 + 241 + 0 + 4 + 51 + 365 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 188424578241 + 1123985873124 = 434079^2 + 1060182^2 .

It is not a de Polignac number, because 1312410451365 - 2² = 1312410451361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312410451361) 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 55 ways as a sum of consecutive naturals, for example, 13800990 + ... + 13895759.

It is an arithmetic number, because the mean of its divisors is an integer number (45408821625).

Almost surely, 2^{1312410451365} is an apocalyptic number.

1312410451365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312410451365 is a deficient number, since it is larger than the sum of its proper divisors (1230483559635).

1312410451365 is an equidigital number, since it uses as much as digits as its factorization.

1312410451365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696785 (or 27696770 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 1312410451365 its reverse (5631540142131), we get a palindrome (6943950593496).

The spelling of 1312410451365 in words is "one trillion, three hundred twelve billion, four hundred ten million, four hundred fifty-one thousand, three hundred sixty-five".