20630050121 has 4 divisors (see below), whose sum is σ = 20664037632. Its totient is φ = 20596062612.

The previous prime is 20630050093. The next prime is 20630050127. The reversal of 20630050121 is 12105003602.

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 20630050121 - 2⁶ = 20630050057 is a prime.

It is a super-2 number, since 2×20630050121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20630050093 and 20630050102.

It is not an unprimeable number, because it can be changed into a prime (20630050127) 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, 16992845 + ... + 16994058.

It is an arithmetic number, because the mean of its divisors is an integer number (5166009408).

Almost surely, 2^20630050121 is an apocalyptic number.

It is an amenable number.

20630050121 is a deficient number, since it is larger than the sum of its proper divisors (33987511).

20630050121 is an equidigital number, since it uses as much as digits as its factorization.

20630050121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33987510.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 20630050121 its reverse (12105003602), we get a palindrome (32735053723).

The spelling of 20630050121 in words is "twenty billion, six hundred thirty million, fifty thousand, one hundred twenty-one".