42432142443431 has 16 divisors (see below), whose sum is σ = 46119607335648. Its totient is φ = 38806140172800.

The previous prime is 42432142443401. The next prime is 42432142443503. The reversal of 42432142443431 is 13434424123424.

It is not a de Polignac number, because 42432142443431 - 2¹⁸ = 42432142181287 is a prime.

It is a super-2 number, since 2×42432142443431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42432142443401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19140590 + ... + 21242091.

It is an arithmetic number, because the mean of its divisors is an integer number (2882475458478).

Almost surely, 2^{42432142443431} is an apocalyptic number.

42432142443431 is a deficient number, since it is larger than the sum of its proper divisors (3687464892217).

42432142443431 is a wasteful number, since it uses less digits than its factorization.

42432142443431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40383442.

The product of its digits is 884736, while the sum is 41.

Adding to 42432142443431 its reverse (13434424123424), we get a palindrome (55866566566855).

The spelling of 42432142443431 in words is "forty-two trillion, four hundred thirty-two billion, one hundred forty-two million, four hundred forty-three thousand, four hundred thirty-one".