20059121 has 2 divisors, whose sum is σ = 20059122. Its totient is φ = 20059120.

The previous prime is 20059093. The next prime is 20059141. The reversal of 20059121 is 12195002.

It is an a-pointer prime, because the next prime (20059141) can be obtained adding 20059121 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10817521 + 9241600 = 3289^2 + 3040^2 .

It is a cyclic number.

It is not a de Polignac number, because 20059121 - 2¹⁰ = 20058097 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20059093 and 20059102.

It is not a weakly prime, because it can be changed into another prime (20059141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029560 + 10029561.

It is an arithmetic number, because the mean of its divisors is an integer number (10029561).

Almost surely, 2^20059121 is an apocalyptic number.

It is an amenable number.

20059121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20059121 is an equidigital number, since it uses as much as digits as its factorization.

20059121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 20059121 is about 4478.7410061311. The cubic root of 20059121 is about 271.7089636845.

The spelling of 20059121 in words is "twenty million, fifty-nine thousand, one hundred twenty-one".