34043020421 has 16 divisors (see below), whose sum is σ = 37052170560. Its totient is φ = 31147234560.

The previous prime is 34043020409. The next prime is 34043020441. The reversal of 34043020421 is 12402034043.

It is a cyclic number.

It is not a de Polignac number, because 34043020421 - 2²² = 34038826117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34043020441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 713450 + ... + 759668.

It is an arithmetic number, because the mean of its divisors is an integer number (2315760660).

Almost surely, 2^34043020421 is an apocalyptic number.

It is an amenable number.

34043020421 is a deficient number, since it is larger than the sum of its proper divisors (3009150139).

34043020421 is a wasteful number, since it uses less digits than its factorization.

34043020421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47444.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 34043020421 its reverse (12402034043), we get a palindrome (46445054464).

The spelling of 34043020421 in words is "thirty-four billion, forty-three million, twenty thousand, four hundred twenty-one".