34534343213 has 4 divisors (see below), whose sum is σ = 34733963868. Its totient is φ = 34334722560.

The previous prime is 34534343189. The next prime is 34534343243. The reversal of 34534343213 is 31234343543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31234343543 = 13 ⋅2402641811.

It can be written as a sum of positive squares in 2 ways, for example, as 29023211044 + 5511132169 = 170362^2 + 74237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34534343213 is a prime.

It is a super-2 number, since 2×34534343213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34534343243) 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, 99810068 + ... + 99810413.

It is an arithmetic number, because the mean of its divisors is an integer number (8683490967).

Almost surely, 2^34534343213 is an apocalyptic number.

It is an amenable number.

34534343213 is a deficient number, since it is larger than the sum of its proper divisors (199620655).

34534343213 is a wasteful number, since it uses less digits than its factorization.

34534343213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199620654.

The product of its digits is 155520, while the sum is 35.

Adding to 34534343213 its reverse (31234343543), we get a palindrome (65768686756).

The spelling of 34534343213 in words is "thirty-four billion, five hundred thirty-four million, three hundred forty-three thousand, two hundred thirteen".