42031112340505 has 16 divisors (see below), whose sum is σ = 53159392630080. Its totient is φ = 31814682075072.

The previous prime is 42031112340487. The next prime is 42031112340551. The reversal of 42031112340505 is 50504321113024.

It is a cyclic number.

It is not a de Polignac number, because 42031112340505 - 2²³ = 42031103951897 is a prime.

It is a super-2 number, since 2×42031112340505² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 281013394 + ... + 281162923.

It is an arithmetic number, because the mean of its divisors is an integer number (3322462039380).

Almost surely, 2^{42031112340505} is an apocalyptic number.

It is an amenable number.

42031112340505 is a deficient number, since it is larger than the sum of its proper divisors (11128280289575).

42031112340505 is a wasteful number, since it uses less digits than its factorization.

42031112340505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562177128.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 42031112340505 its reverse (50504321113024), we get a palindrome (92535433453529).

The spelling of 42031112340505 in words is "forty-two trillion, thirty-one billion, one hundred twelve million, three hundred forty thousand, five hundred five".