34054020021 has 16 divisors (see below), whose sum is σ = 51900940928. Its totient is φ = 19456027200.

The previous prime is 34054019977. The next prime is 34054020029. The reversal of 34054020021 is 12002045043.

It is not a de Polignac number, because 34054020021 - 2³¹ = 31906536373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 34054020021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34054020029) 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 15 ways as a sum of consecutive naturals, for example, 17050 + ... + 261531.

It is an arithmetic number, because the mean of its divisors is an integer number (3243808808).

Almost surely, 2^34054020021 is an apocalyptic number.

It is an amenable number.

34054020021 is a deficient number, since it is larger than the sum of its proper divisors (17846920907).

34054020021 is a wasteful number, since it uses less digits than its factorization.

34054020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284412.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 34054020021 its reverse (12002045043), we get a palindrome (46056065064).

The spelling of 34054020021 in words is "thirty-four billion, fifty-four million, twenty thousand, twenty-one".