42044542432031 has 4 divisors (see below), whose sum is σ = 42044666218464. Its totient is φ = 42044418645600.

The previous prime is 42044542432027. The next prime is 42044542432049. The reversal of 42044542432031 is 13023424544024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42044542432031 - 2² = 42044542432027 is a prime.

It is a super-2 number, since 2×42044542432031² (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 (42044542432091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61382330 + ... + 62063511.

It is an arithmetic number, because the mean of its divisors is an integer number (10511166554616).

Almost surely, 2^{42044542432031} is an apocalyptic number.

42044542432031 is a deficient number, since it is larger than the sum of its proper divisors (123786433).

42044542432031 is a wasteful number, since it uses less digits than its factorization.

42044542432031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123786432.

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 42044542432031 its reverse (13023424544024), we get a palindrome (55067966976055).

The spelling of 42044542432031 in words is "forty-two trillion, forty-four billion, five hundred forty-two million, four hundred thirty-two thousand, thirty-one".