420230131 has 4 divisors (see below), whose sum is σ = 423013264. Its totient is φ = 417447000.

The previous prime is 420230117. The next prime is 420230147. The reversal of 420230131 is 131032024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420230131 - 2⁷ = 420230003 is a prime.

It is a super-2 number, since 2×420230131² = 353186726000554322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420237131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391340 + ... + 1391641.

It is an arithmetic number, because the mean of its divisors is an integer number (105753316).

Almost surely, 2^420230131 is an apocalyptic number.

420230131 is a deficient number, since it is larger than the sum of its proper divisors (2783133).

420230131 is a wasteful number, since it uses less digits than its factorization.

420230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783132.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 420230131 is about 20499.5153845158. The cubic root of 420230131 is about 749.0239932469.

Adding to 420230131 its reverse (131032024), we get a palindrome (551262155).

The spelling of 420230131 in words is "four hundred twenty million, two hundred thirty thousand, one hundred thirty-one".