1340143404342 has 16 divisors (see below), whose sum is σ = 2680606409520. Its totient is φ = 446661201312.

The previous prime is 1340143404323. The next prime is 1340143404361. The reversal of 1340143404342 is 2434043410431.

It is an interprime number because it is at equal distance from previous prime (1340143404323) and next prime (1340143404361).

It is a super-5 number, since 5×1340143404342⁵ (a number of 62 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13262173 + ... + 13362840.

It is an arithmetic number, because the mean of its divisors is an integer number (167537900595).

Almost surely, 2^{1340143404342} is an apocalyptic number.

1340143404342 is an abundant number, since it is smaller than the sum of its proper divisors (1340463005178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340143404342 is a wasteful number, since it uses less digits than its factorization.

1340143404342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26633407.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 1340143404342 its reverse (2434043410431), we get a palindrome (3774186814773).

The spelling of 1340143404342 in words is "one trillion, three hundred forty billion, one hundred forty-three million, four hundred four thousand, three hundred forty-two".