42242123131 has 8 divisors (see below), whose sum is σ = 45496310720. Its totient is φ = 38988620352.

The previous prime is 42242123093. The next prime is 42242123149. The reversal of 42242123131 is 13132124224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42242123131 - 2¹¹ = 42242121083 is a prime.

It is a super-2 number, since 2×42242123131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42242123096 and 42242123105.

It is not an unprimeable number, because it can be changed into a prime (42242123191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39315 + ... + 293308.

It is an arithmetic number, because the mean of its divisors is an integer number (5687038840).

Almost surely, 2^42242123131 is an apocalyptic number.

42242123131 is a deficient number, since it is larger than the sum of its proper divisors (3254187589).

42242123131 is a wasteful number, since it uses less digits than its factorization.

42242123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342405.

The product of its digits is 2304, while the sum is 25.

Adding to 42242123131 its reverse (13132124224), we get a palindrome (55374247355).

The spelling of 42242123131 in words is "forty-two billion, two hundred forty-two million, one hundred twenty-three thousand, one hundred thirty-one".