340221403422123 has 4 divisors (see below), whose sum is σ = 453628537896168. Its totient is φ = 226814268948080.

The previous prime is 340221403422119. The next prime is 340221403422127. The reversal of 340221403422123 is 321224304122043.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (340221403422119) and next prime (340221403422127).

It is a cyclic number.

It is not a de Polignac number, because 340221403422123 - 2² = 340221403422119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340221403422127) 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, 56703567237018 + ... + 56703567237023.

It is an arithmetic number, because the mean of its divisors is an integer number (113407134474042).

Almost surely, 2^{340221403422123} is an apocalyptic number.

340221403422123 is a deficient number, since it is larger than the sum of its proper divisors (113407134474045).

340221403422123 is a wasteful number, since it uses less digits than its factorization.

340221403422123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113407134474044.

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

Adding to 340221403422123 its reverse (321224304122043), we get a palindrome (661445707544166).

The spelling of 340221403422123 in words is "three hundred forty trillion, two hundred twenty-one billion, four hundred three million, four hundred twenty-two thousand, one hundred twenty-three".