421231130 has 32 divisors (see below), whose sum is σ = 779723280. Its totient is φ = 163745280.

The previous prime is 421231123. The next prime is 421231141. The reversal of 421231130 is 31132124.

It can be written as a sum of positive squares in 8 ways, for example, as 7230721 + 414000409 = 2689^2 + 20347^2 .

It is a junction number, because it is equal to n+sod(n) for n = 421231099 and 421231108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111716 + ... + 115424.

Almost surely, 2^421231130 is an apocalyptic number.

421231130 is a deficient number, since it is larger than the sum of its proper divisors (358492150).

421231130 is a wasteful number, since it uses less digits than its factorization.

421231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 421231130 is about 20523.9160493313. The cubic root of 421231130 is about 749.6182531328.

Adding to 421231130 its reverse (31132124), we get a palindrome (452363254).

The spelling of 421231130 in words is "four hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty".