2050404121 has 4 divisors (see below), whose sum is σ = 2050745652. Its totient is φ = 2050062592.

The previous prime is 2050404091. The next prime is 2050404179. The reversal of 2050404121 is 1214040502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 774842896 + 1275561225 = 27836^2 + 35715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2050404121 - 2²¹ = 2048306969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2050402121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161596 + ... + 173821.

It is an arithmetic number, because the mean of its divisors is an integer number (512686413).

Almost surely, 2^2050404121 is an apocalyptic number.

It is an amenable number.

2050404121 is a deficient number, since it is larger than the sum of its proper divisors (341531).

2050404121 is an equidigital number, since it uses as much as digits as its factorization.

2050404121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341530.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2050404121 is about 45281.3882406447. The cubic root of 2050404121 is about 1270.4175618707.

Adding to 2050404121 its reverse (1214040502), we get a palindrome (3264444623).

The spelling of 2050404121 in words is "two billion, fifty million, four hundred four thousand, one hundred twenty-one".