242513452531 has 8 divisors (see below), whose sum is σ = 278049417984. Its totient is φ = 207200283720.

The previous prime is 242513452529. The next prime is 242513452541. The reversal of 242513452531 is 135254315242.

It is a happy number.

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 242513452531 - 2¹ = 242513452529 is a prime.

It is a super-2 number, since 2×242513452531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242513452541) 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, 55696825 + ... + 55701178.

It is an arithmetic number, because the mean of its divisors is an integer number (34756177248).

Almost surely, 2^242513452531 is an apocalyptic number.

242513452531 is a deficient number, since it is larger than the sum of its proper divisors (35535965453).

242513452531 is a wasteful number, since it uses less digits than its factorization.

242513452531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111398321.

The product of its digits is 144000, while the sum is 37.

Adding to 242513452531 its reverse (135254315242), we get a palindrome (377767767773).

The spelling of 242513452531 in words is "two hundred forty-two billion, five hundred thirteen million, four hundred fifty-two thousand, five hundred thirty-one".