5121452321 has 2 divisors, whose sum is σ = 5121452322. Its totient is φ = 5121452320.

The previous prime is 5121452267. The next prime is 5121452327. The reversal of 5121452321 is 1232541215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5121406096 + 46225 = 71564^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 5121452321 - 2⁶ = 5121452257 is a prime.

It is not a weakly prime, because it can be changed into another prime (5121452327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560726160 + 2560726161.

It is an arithmetic number, because the mean of its divisors is an integer number (2560726161).

Almost surely, 2^5121452321 is an apocalyptic number.

It is an amenable number.

5121452321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121452321 is an equidigital number, since it uses as much as digits as its factorization.

5121452321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 5121452321 is about 71564.3229619340. The cubic root of 5121452321 is about 1723.7107017621.

Adding to 5121452321 its reverse (1232541215), we get a palindrome (6353993536).

The spelling of 5121452321 in words is "five billion, one hundred twenty-one million, four hundred fifty-two thousand, three hundred twenty-one".