34304003021 has 4 divisors (see below), whose sum is σ = 34305034044. Its totient is φ = 34302972000.

The previous prime is 34304003011. The next prime is 34304003047. The reversal of 34304003021 is 12030040343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12030040343 = 3923 ⋅3066541.

It can be written as a sum of positive squares in 2 ways, for example, as 16724955625 + 17579047396 = 129325^2 + 132586^2 .

It is a cyclic number.

It is not a de Polignac number, because 34304003021 - 2³⁴ = 17124133837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34304002984 and 34304003002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34304003011) 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, 463880 + ... + 532721.

It is an arithmetic number, because the mean of its divisors is an integer number (8576258511).

Almost surely, 2^34304003021 is an apocalyptic number.

It is an amenable number.

34304003021 is a deficient number, since it is larger than the sum of its proper divisors (1031023).

34304003021 is an equidigital number, since it uses as much as digits as its factorization.

34304003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031022.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 34304003021 its reverse (12030040343), we get a palindrome (46334043364).

The spelling of 34304003021 in words is "thirty-four billion, three hundred four million, three thousand, twenty-one".