1340231420513 has 4 divisors (see below), whose sum is σ = 1340234459328. Its totient is φ = 1340228381700.

The previous prime is 1340231420503. The next prime is 1340231420569. The reversal of 1340231420513 is 3150241320431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1340231420513 - 2²² = 1340227226209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340231420503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716381 + ... + 1787082.

It is an arithmetic number, because the mean of its divisors is an integer number (335058614832).

Almost surely, 2^{1340231420513} is an apocalyptic number.

It is an amenable number.

1340231420513 is a deficient number, since it is larger than the sum of its proper divisors (3038815).

1340231420513 is an equidigital number, since it uses as much as digits as its factorization.

1340231420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038814.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 1340231420513 its reverse (3150241320431), we get a palindrome (4490472740944).

The spelling of 1340231420513 in words is "one trillion, three hundred forty billion, two hundred thirty-one million, four hundred twenty thousand, five hundred thirteen".