34123435521 has 32 divisors (see below), whose sum is σ = 56227737600. Its totient is φ = 17961620736.

The previous prime is 34123435517. The next prime is 34123435537. The reversal of 34123435521 is 12553432143.

It is not a de Polignac number, because 34123435521 - 2² = 34123435517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34123431521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1000071 + ... + 1033628.

It is an arithmetic number, because the mean of its divisors is an integer number (1757116800).

Almost surely, 2^34123435521 is an apocalyptic number.

It is an amenable number.

34123435521 is a deficient number, since it is larger than the sum of its proper divisors (22104302079).

34123435521 is a wasteful number, since it uses less digits than its factorization.

34123435521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033773.

The product of its digits is 43200, while the sum is 33.

Adding to 34123435521 its reverse (12553432143), we get a palindrome (46676867664).

The spelling of 34123435521 in words is "thirty-four billion, one hundred twenty-three million, four hundred thirty-five thousand, five hundred twenty-one".