20340121330 has 8 divisors (see below), whose sum is σ = 36612218412. Its totient is φ = 8136048528.

The previous prime is 20340121289. The next prime is 20340121331. The reversal of 20340121330 is 3312104302.

It can be written as a sum of positive squares in 2 ways, for example, as 18882332569 + 1457788761 = 137413^2 + 38181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20340121298 and 20340121307.

It is not an unprimeable number, because it can be changed into a prime (20340121331) 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, 1017006057 + ... + 1017006076.

Almost surely, 2^20340121330 is an apocalyptic number.

20340121330 is a deficient number, since it is larger than the sum of its proper divisors (16272097082).

20340121330 is a wasteful number, since it uses less digits than its factorization.

20340121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034012140.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20340121330 its reverse (3312104302), we get a palindrome (23652225632).

The spelling of 20340121330 in words is "twenty billion, three hundred forty million, one hundred twenty-one thousand, three hundred thirty".