420330131 has 8 divisors (see below), whose sum is σ = 458865120. Its totient is φ = 382681152.

The previous prime is 420330107. The next prime is 420330143. The reversal of 420330131 is 131033024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420330131 - 2⁶ = 420330067 is a prime.

It is a super-2 number, since 2×420330131² = 353354838052954322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420333131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220511 + ... + 222408.

It is an arithmetic number, because the mean of its divisors is an integer number (57358140).

Almost surely, 2^420330131 is an apocalyptic number.

420330131 is a deficient number, since it is larger than the sum of its proper divisors (38534989).

420330131 is a wasteful number, since it uses less digits than its factorization.

420330131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443005.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 420330131 is about 20501.9543214787. The cubic root of 420330131 is about 749.0834023287.

Adding to 420330131 its reverse (131033024), we get a palindrome (551363155).

The spelling of 420330131 in words is "four hundred twenty million, three hundred thirty thousand, one hundred thirty-one".