340135134243 has 8 divisors (see below), whose sum is σ = 464060338368. Its totient is φ = 221483343144.

The previous prime is 340135134239. The next prime is 340135134263. The reversal of 340135134243 is 342431531043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340135134243 - 2² = 340135134239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340135134263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318353105 + ... + 1318353362.

It is an arithmetic number, because the mean of its divisors is an integer number (58007542296).

Almost surely, 2^340135134243 is an apocalyptic number.

340135134243 is a deficient number, since it is larger than the sum of its proper divisors (123925204125).

340135134243 is a wasteful number, since it uses less digits than its factorization.

340135134243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636706513.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 340135134243 its reverse (342431531043), we get a palindrome (682566665286).

The spelling of 340135134243 in words is "three hundred forty billion, one hundred thirty-five million, one hundred thirty-four thousand, two hundred forty-three".