340432123101243 has 4 divisors (see below), whose sum is σ = 453909497468328. Its totient is φ = 226954748734160.

The previous prime is 340432123101227. The next prime is 340432123101247. The reversal of 340432123101243 is 342101321234043.

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

It is a cyclic number.

It is not a de Polignac number, because 340432123101243 - 2⁴ = 340432123101227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340432123101247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56738687183538 + ... + 56738687183543.

It is an arithmetic number, because the mean of its divisors is an integer number (113477374367082).

Almost surely, 2^{340432123101243} is an apocalyptic number.

340432123101243 is a deficient number, since it is larger than the sum of its proper divisors (113477374367085).

340432123101243 is a wasteful number, since it uses less digits than its factorization.

340432123101243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113477374367084.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 340432123101243 its reverse (342101321234043), we get a palindrome (682533444335286).

The spelling of 340432123101243 in words is "three hundred forty trillion, four hundred thirty-two billion, one hundred twenty-three million, one hundred one thousand, two hundred forty-three".