2050136021 has 2 divisors, whose sum is σ = 2050136022. Its totient is φ = 2050136020.

The previous prime is 2050136003. The next prime is 2050136041. The reversal of 2050136021 is 1206310502.

It is an a-pointer prime, because the next prime (2050136041) can be obtained adding 2050136021 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1943839921 + 106296100 = 44089^2 + 10310^2 .

It is a cyclic number.

It is not a de Polignac number, because 2050136021 - 2⁶ = 2050135957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2050135984 and 2050136002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2050136041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025068010 + 1025068011.

It is an arithmetic number, because the mean of its divisors is an integer number (1025068011).

Almost surely, 2^2050136021 is an apocalyptic number.

It is an amenable number.

2050136021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050136021 is an equidigital number, since it uses as much as digits as its factorization.

2050136021 is an evil number, because the sum of its binary digits is even.

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

The square root of 2050136021 is about 45278.4277664320. The cubic root of 2050136021 is about 1270.3621884297.

Adding to 2050136021 its reverse (1206310502), we get a palindrome (3256446523).

The spelling of 2050136021 in words is "two billion, fifty million, one hundred thirty-six thousand, twenty-one".