1340040001387 has 2 divisors, whose sum is σ = 1340040001388. Its totient is φ = 1340040001386.

The previous prime is 1340040001379. The next prime is 1340040001439. The reversal of 1340040001387 is 7831000400431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340040001387 - 2³ = 1340040001379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340040001087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670020000693 + 670020000694.

It is an arithmetic number, because the mean of its divisors is an integer number (670020000694).

Almost surely, 2^{1340040001387} is an apocalyptic number.

1340040001387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340040001387 is an equidigital number, since it uses as much as digits as its factorization.

1340040001387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 1340040001387 in words is "one trillion, three hundred forty billion, forty million, one thousand, three hundred eighty-seven".