20330030121 has 4 divisors (see below), whose sum is σ = 27106706832. Its totient is φ = 13553353412.

The previous prime is 20330030107. The next prime is 20330030131. The reversal of 20330030121 is 12103003302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20330030121 - 2⁹ = 20330029609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20330030121.

It is not an unprimeable number, because it can be changed into a prime (20330030131) 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 3 ways as a sum of consecutive naturals, for example, 3388338351 + ... + 3388338356.

It is an arithmetic number, because the mean of its divisors is an integer number (6776676708).

Almost surely, 2^20330030121 is an apocalyptic number.

It is an amenable number.

20330030121 is a deficient number, since it is larger than the sum of its proper divisors (6776676711).

20330030121 is an equidigital number, since it uses as much as digits as its factorization.

20330030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776676710.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20330030121 its reverse (12103003302), we get a palindrome (32433033423).

The spelling of 20330030121 in words is "twenty billion, three hundred thirty million, thirty thousand, one hundred twenty-one".