420126788331 has 12 divisors (see below), whose sum is σ = 623251151952. Its totient is φ = 272514673296.

The previous prime is 420126788329. The next prime is 420126788359. The reversal of 420126788331 is 133887621024.

420126788331 is a `hidden beast` number, since 420 + 126 + 78 + 8 + 3 + 31 = 666.

It is not a de Polignac number, because 420126788331 - 2¹ = 420126788329 is a prime.

It is a super-2 number, since 2×420126788331² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (420126789331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 630820671 + ... + 630821336.

It is an arithmetic number, because the mean of its divisors is an integer number (51937595996).

Almost surely, 2^420126788331 is an apocalyptic number.

420126788331 is a deficient number, since it is larger than the sum of its proper divisors (203124363621).

420126788331 is a wasteful number, since it uses less digits than its factorization.

420126788331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261642050 (or 1261642047 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 420126788331 in words is "four hundred twenty billion, one hundred twenty-six million, seven hundred eighty-eight thousand, three hundred thirty-one".