340422433312123 has 4 divisors (see below), whose sum is σ = 340532852528088. Its totient is φ = 340312014096160.

The previous prime is 340422433312111. The next prime is 340422433312147. The reversal of 340422433312123 is 321213334224043.

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 340422433312123 - 2²⁵ = 340422399757691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340422433312163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55209603358 + ... + 55209609523.

It is an arithmetic number, because the mean of its divisors is an integer number (85133213132022).

Almost surely, 2^{340422433312123} is an apocalyptic number.

340422433312123 is a deficient number, since it is larger than the sum of its proper divisors (110419215965).

340422433312123 is a wasteful number, since it uses less digits than its factorization.

340422433312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110419215964.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 340422433312123 its reverse (321213334224043), we get a palindrome (661635767536166).

The spelling of 340422433312123 in words is "three hundred forty trillion, four hundred twenty-two billion, four hundred thirty-three million, three hundred twelve thousand, one hundred twenty-three".