202120411 has 2 divisors, whose sum is σ = 202120412. Its totient is φ = 202120410.

The previous prime is 202120409. The next prime is 202120417. The reversal of 202120411 is 114021202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202120411 - 2¹ = 202120409 is a prime.

Together with 202120409, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 202120391 and 202120400.

It is not a weakly prime, because it can be changed into another prime (202120417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060205 + 101060206.

It is an arithmetic number, because the mean of its divisors is an integer number (101060206).

Almost surely, 2^202120411 is an apocalyptic number.

202120411 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120411 is an equidigital number, since it uses as much as digits as its factorization.

202120411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 202120411 is about 14216.9058166677. The cubic root of 202120411 is about 586.8629930406.

Adding to 202120411 its reverse (114021202), we get a palindrome (316141613).

The spelling of 202120411 in words is "two hundred two million, one hundred twenty thousand, four hundred eleven".