2520812101 has 2 divisors, whose sum is σ = 2520812102. Its totient is φ = 2520812100.

The previous prime is 2520812057. The next prime is 2520812117. The reversal of 2520812101 is 1012180252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1634261476 + 886550625 = 40426^2 + 29775^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520812101 - 2⁷ = 2520811973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520812201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260406050 + 1260406051.

It is an arithmetic number, because the mean of its divisors is an integer number (1260406051).

Almost surely, 2^2520812101 is an apocalyptic number.

It is an amenable number.

2520812101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520812101 is an equidigital number, since it uses as much as digits as its factorization.

2520812101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 2520812101 is about 50207.6896600511. The cubic root of 2520812101 is about 1360.9645876497.

Adding to 2520812101 its reverse (1012180252), we get a palindrome (3532992353).

The spelling of 2520812101 in words is "two billion, five hundred twenty million, eight hundred twelve thousand, one hundred one".