1340131405143 has 4 divisors (see below), whose sum is σ = 1786841873528. Its totient is φ = 893420936760.

The previous prime is 1340131405121. The next prime is 1340131405201. The reversal of 1340131405143 is 3415041310431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1340131405143 - 2¹⁷ = 1340131274071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340131405143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340131406143) 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 3 ways as a sum of consecutive naturals, for example, 223355234188 + ... + 223355234193.

It is an arithmetic number, because the mean of its divisors is an integer number (446710468382).

Almost surely, 2^{1340131405143} is an apocalyptic number.

1340131405143 is a deficient number, since it is larger than the sum of its proper divisors (446710468385).

1340131405143 is an equidigital number, since it uses as much as digits as its factorization.

1340131405143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446710468384.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1340131405143 its reverse (3415041310431), we get a palindrome (4755172715574).

The spelling of 1340131405143 in words is "one trillion, three hundred forty billion, one hundred thirty-one million, four hundred five thousand, one hundred forty-three".