242135531242 has 16 divisors (see below), whose sum is σ = 397631830464. Its totient is φ = 109669924000.

The previous prime is 242135531219. The next prime is 242135531243.

242135531242 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 242135531198 and 242135531207.

It is not an unprimeable number, because it can be changed into a prime (242135531243) 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, 19577734 + ... + 19590097.

It is an arithmetic number, because the mean of its divisors is an integer number (24851989404).

Almost surely, 2^242135531242 is an apocalyptic number.

242135531242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

242135531242 is a deficient number, since it is larger than the sum of its proper divisors (155496299222).

242135531242 is a wasteful number, since it uses less digits than its factorization.

242135531242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39168125.

The product of its digits is 57600, while the sum is 34.

It can be divided in two parts, 242135 and 531242, that added together give a palindrome (773377).

The spelling of 242135531242 in words is "two hundred forty-two billion, one hundred thirty-five million, five hundred thirty-one thousand, two hundred forty-two".