34500431021 has 24 divisors (see below), whose sum is σ = 42462907200. Its totient is φ = 28015287048.

The previous prime is 34500430949. The next prime is 34500431027. The reversal of 34500431021 is 12013400543.

It is a de Polignac number, because none of the positive numbers 2^k-34500431021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34500431027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15491 + ... + 263136.

It is an arithmetic number, because the mean of its divisors is an integer number (1769287800).

Almost surely, 2^34500431021 is an apocalyptic number.

It is an amenable number.

34500431021 is a deficient number, since it is larger than the sum of its proper divisors (7962476179).

34500431021 is an equidigital number, since it uses as much as digits as its factorization.

34500431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278686 (or 278653 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 34500431021 its reverse (12013400543), we get a palindrome (46513831564).

The spelling of 34500431021 in words is "thirty-four billion, five hundred million, four hundred thirty-one thousand, twenty-one".