1340310421445 has 24 divisors (see below), whose sum is σ = 1658234133864. Its totient is φ = 1039975900416.

The previous prime is 1340310421409. The next prime is 1340310421487. The reversal of 1340310421445 is 5441240130431.

It can be written as a sum of positive squares in 12 ways, for example, as 6705808321 + 1333604613124 = 81889^2 + 1154818^2 .

It is not a de Polignac number, because 1340310421445 - 2⁸ = 1340310421189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1861019 + ... + 2478711.

It is an arithmetic number, because the mean of its divisors is an integer number (69093088911).

Almost surely, 2^{1340310421445} is an apocalyptic number.

It is an amenable number.

1340310421445 is a deficient number, since it is larger than the sum of its proper divisors (317923712419).

1340310421445 is an equidigital number, since it uses as much as digits as its factorization.

1340310421445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618089 (or 618052 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 1340310421445 its reverse (5441240130431), we get a palindrome (6781550551876).

The spelling of 1340310421445 in words is "one trillion, three hundred forty billion, three hundred ten million, four hundred twenty-one thousand, four hundred forty-five".