34230440021 has 6 divisors (see below), whose sum is σ = 35085693666. Its totient is φ = 33395549600.

The previous prime is 34230440017. The next prime is 34230440093. The reversal of 34230440021 is 12004403243.

It can be written as a sum of positive squares in 3 ways, for example, as 1639359121 + 32591080900 = 40489^2 + 180530^2 .

It is not a de Polignac number, because 34230440021 - 2² = 34230440017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34230430021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10179890 + ... + 10183251.

It is an arithmetic number, because the mean of its divisors is an integer number (5847615611).

Almost surely, 2^34230440021 is an apocalyptic number.

It is an amenable number.

34230440021 is a deficient number, since it is larger than the sum of its proper divisors (855253645).

34230440021 is an equidigital number, since it uses as much as digits as its factorization.

34230440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20363223 (or 20363182 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 34230440021 its reverse (12004403243), we get a palindrome (46234843264).

The spelling of 34230440021 in words is "thirty-four billion, two hundred thirty million, four hundred forty thousand, twenty-one".