201130421 has 2 divisors, whose sum is σ = 201130422. Its totient is φ = 201130420.

The previous prime is 201130411. The next prime is 201130429. The reversal of 201130421 is 124031102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124567921 + 76562500 = 11161^2 + 8750^2 .

It is a cyclic number.

It is not a de Polignac number, because 201130421 - 2¹⁴ = 201114037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201130396 and 201130405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201130429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100565210 + 100565211.

It is an arithmetic number, because the mean of its divisors is an integer number (100565211).

Almost surely, 2^201130421 is an apocalyptic number.

It is an amenable number.

201130421 is a deficient number, since it is larger than the sum of its proper divisors (1).

201130421 is an equidigital number, since it uses as much as digits as its factorization.

201130421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 201130421 is about 14182.0457269041. The cubic root of 201130421 is about 585.9032686766.

Adding to 201130421 its reverse (124031102), we get a palindrome (325161523).

The spelling of 201130421 in words is "two hundred one million, one hundred thirty thousand, four hundred twenty-one".