42531040431 has 48 divisors (see below), whose sum is σ = 68169029760. Its totient is φ = 25334568000.

The previous prime is 42531040421. The next prime is 42531040459. The reversal of 42531040431 is 13404013524.

It is a happy number.

42531040431 is a `hidden beast` number, since 4 + 253 + 1 + 0 + 404 + 3 + 1 = 666.

It is not a de Polignac number, because 42531040431 - 2⁷ = 42531040303 is a prime.

It is a super-3 number, since 3×42531040431³ (a number of 33 digits) contains 333 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 = 42531040395 and 42531040404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42531040411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14123716 + ... + 14126726.

It is an arithmetic number, because the mean of its divisors is an integer number (1420188120).

Almost surely, 2^42531040431 is an apocalyptic number.

42531040431 is a deficient number, since it is larger than the sum of its proper divisors (25637989329).

42531040431 is a wasteful number, since it uses less digits than its factorization.

42531040431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428 (or 5425 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 42531040431 its reverse (13404013524), we get a palindrome (55935053955).

The spelling of 42531040431 in words is "forty-two billion, five hundred thirty-one million, forty thousand, four hundred thirty-one".