34040200121 has 4 divisors (see below), whose sum is σ = 36042564852. Its totient is φ = 32037835392.

The previous prime is 34040200099. The next prime is 34040200147. The reversal of 34040200121 is 12100204043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12100204043 = 7331 ⋅1650553.

It can be written as a sum of positive squares in 2 ways, for example, as 11027310121 + 23012890000 = 105011^2 + 151700^2 .

It is a cyclic number.

It is not a de Polignac number, because 34040200121 - 2³⁴ = 16860330937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 2002364713 = 34040200121 / (3 + 4 + 0 + 4 + 0 + 2 + 0 + 0 + 1 + 2 + 1).

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 34040200121.

It is not an unprimeable number, because it can be changed into a prime (34040200921) 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, 1001182340 + ... + 1001182373.

It is an arithmetic number, because the mean of its divisors is an integer number (9010641213).

Almost surely, 2^34040200121 is an apocalyptic number.

It is an amenable number.

34040200121 is a deficient number, since it is larger than the sum of its proper divisors (2002364731).

34040200121 is a wasteful number, since it uses less digits than its factorization.

34040200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002364730.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 34040200121 its reverse (12100204043), we get a palindrome (46140404164).

The spelling of 34040200121 in words is "thirty-four billion, forty million, two hundred thousand, one hundred twenty-one".