20033130121 has 16 divisors (see below), whose sum is σ = 20646476928. Its totient is φ = 19426780800.

The previous prime is 20033130107. The next prime is 20033130163. The reversal of 20033130121 is 12103133002.

It is not a de Polignac number, because 20033130121 - 2¹⁹ = 20032605833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20033130095 and 20033130104.

It is not an unprimeable number, because it can be changed into a prime (20033130721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11639541 + ... + 11641261.

It is an arithmetic number, because the mean of its divisors is an integer number (1290404808).

Almost surely, 2^20033130121 is an apocalyptic number.

It is an amenable number.

20033130121 is a deficient number, since it is larger than the sum of its proper divisors (613346807).

20033130121 is a wasteful number, since it uses less digits than its factorization.

20033130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20033130121 its reverse (12103133002), we get a palindrome (32136263123).

The spelling of 20033130121 in words is "twenty billion, thirty-three million, one hundred thirty thousand, one hundred twenty-one".