34121220123 has 4 divisors (see below), whose sum is σ = 45494960168. Its totient is φ = 22747480080.

The previous prime is 34121220097. The next prime is 34121220169. The reversal of 34121220123 is 32102212143.

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

It is not a de Polignac number, because 34121220123 - 2¹³ = 34121211931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34121220123.

It is not an unprimeable number, because it can be changed into a prime (34121220193) 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, 5686870018 + ... + 5686870023.

It is an arithmetic number, because the mean of its divisors is an integer number (11373740042).

Almost surely, 2^34121220123 is an apocalyptic number.

34121220123 is a deficient number, since it is larger than the sum of its proper divisors (11373740045).

34121220123 is a wasteful number, since it uses less digits than its factorization.

34121220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11373740044.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 34121220123 its reverse (32102212143), we get a palindrome (66223432266).

The spelling of 34121220123 in words is "thirty-four billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twenty-three".