420107131 has 2 divisors, whose sum is σ = 420107132. Its totient is φ = 420107130.

The previous prime is 420107123. The next prime is 420107159. The reversal of 420107131 is 131701024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420107131 - 2³ = 420107123 is a prime.

It is a super-4 number, since 4×420107131⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 420107099 and 420107108.

It is not a weakly prime, because it can be changed into another prime (420107101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210053565 + 210053566.

It is an arithmetic number, because the mean of its divisors is an integer number (210053566).

Almost surely, 2^420107131 is an apocalyptic number.

420107131 is a deficient number, since it is larger than the sum of its proper divisors (1).

420107131 is an equidigital number, since it uses as much as digits as its factorization.

420107131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 420107131 is about 20496.5150940349. The cubic root of 420107131 is about 748.9509071491.

Adding to 420107131 its reverse (131701024), we get a palindrome (551808155).

It can be divided in two parts, 42010 and 7131, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 420107131 in words is "four hundred twenty million, one hundred seven thousand, one hundred thirty-one".