5230120421 has 2 divisors, whose sum is σ = 5230120422. Its totient is φ = 5230120420.

The previous prime is 5230120403. The next prime is 5230120451. The reversal of 5230120421 is 1240210325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4724500225 + 505620196 = 68735^2 + 22486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5230120421 is a prime.

It is a super-2 number, since 2×5230120421² = 54708319236322434482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5230120393 and 5230120402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5230120451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2615060210 + 2615060211.

It is an arithmetic number, because the mean of its divisors is an integer number (2615060211).

Almost surely, 2^5230120421 is an apocalyptic number.

It is an amenable number.

5230120421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5230120421 is an equidigital number, since it uses as much as digits as its factorization.

5230120421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 5230120421 is about 72319.5714934761. The cubic root of 5230120421 is about 1735.8168351288.

Adding to 5230120421 its reverse (1240210325), we get a palindrome (6470330746).

The spelling of 5230120421 in words is "five billion, two hundred thirty million, one hundred twenty thousand, four hundred twenty-one".