5023522121 has 2 divisors, whose sum is σ = 5023522122. Its totient is φ = 5023522120.

The previous prime is 5023522033. The next prime is 5023522139. The reversal of 5023522121 is 1212253205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4990009600 + 33512521 = 70640^2 + 5789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5023522121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5023521121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2511761060 + 2511761061.

It is an arithmetic number, because the mean of its divisors is an integer number (2511761061).

Almost surely, 2^5023522121 is an apocalyptic number.

It is an amenable number.

5023522121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5023522121 is an equidigital number, since it uses as much as digits as its factorization.

5023522121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5023522121 is about 70876.8094724925. The cubic root of 5023522121 is about 1712.6532367611.

Adding to 5023522121 its reverse (1212253205), we get a palindrome (6235775326).

The spelling of 5023522121 in words is "five billion, twenty-three million, five hundred twenty-two thousand, one hundred twenty-one".