2521204111 has 2 divisors, whose sum is σ = 2521204112. Its totient is φ = 2521204110.

The previous prime is 2521204109. The next prime is 2521204151. The reversal of 2521204111 is 1114021252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2521204111 - 2¹ = 2521204109 is a prime.

Together with 2521204109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521204151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260602055 + 1260602056.

It is an arithmetic number, because the mean of its divisors is an integer number (1260602056).

Almost surely, 2^2521204111 is an apocalyptic number.

2521204111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521204111 is an equidigital number, since it uses as much as digits as its factorization.

2521204111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2521204111 is about 50211.5933923631. The cubic root of 2521204111 is about 1361.0351315927.

Adding to 2521204111 its reverse (1114021252), we get a palindrome (3635225363).

The spelling of 2521204111 in words is "two billion, five hundred twenty-one million, two hundred four thousand, one hundred eleven".