4200130421 has 2 divisors, whose sum is σ = 4200130422. Its totient is φ = 4200130420.

The previous prime is 4200130397. The next prime is 4200130427. The reversal of 4200130421 is 1240310024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2451636196 + 1748494225 = 49514^2 + 41815^2 .

It is a cyclic number.

It is not a de Polignac number, because 4200130421 - 2⁶ = 4200130357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4200130421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4200130427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100065210 + 2100065211.

It is an arithmetic number, because the mean of its divisors is an integer number (2100065211).

Almost surely, 2^4200130421 is an apocalyptic number.

It is an amenable number.

4200130421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4200130421 is an equidigital number, since it uses as much as digits as its factorization.

4200130421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4200130421 is about 64808.4131961276. The cubic root of 4200130421 is about 1613.4453462467.

Adding to 4200130421 its reverse (1240310024), we get a palindrome (5440440445).

The spelling of 4200130421 in words is "four billion, two hundred million, one hundred thirty thousand, four hundred twenty-one".