20083121 has 2 divisors, whose sum is σ = 20083122. Its totient is φ = 20083120.

The previous prime is 20083111. The next prime is 20083159. The reversal of 20083121 is 12138002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10962721 + 9120400 = 3311^2 + 3020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20083121 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20083121.

It is not a weakly prime, because it can be changed into another prime (20083111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041560 + 10041561.

It is an arithmetic number, because the mean of its divisors is an integer number (10041561).

Almost surely, 2^20083121 is an apocalyptic number.

It is an amenable number.

20083121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20083121 is an equidigital number, since it uses as much as digits as its factorization.

20083121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 20083121 is about 4481.4195295687. The cubic root of 20083121 is about 271.8172837539.

The spelling of 20083121 in words is "twenty million, eighty-three thousand, one hundred twenty-one".