242131423533 has 4 divisors (see below), whose sum is σ = 322841898048. Its totient is φ = 161420949020.

The previous prime is 242131423529. The next prime is 242131423553. The reversal of 242131423533 is 335324131242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242131423533 - 2² = 242131423529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242131423494 and 242131423503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242131423553) 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, 40355237253 + ... + 40355237258.

It is an arithmetic number, because the mean of its divisors is an integer number (80710474512).

Almost surely, 2^242131423533 is an apocalyptic number.

It is an amenable number.

242131423533 is a deficient number, since it is larger than the sum of its proper divisors (80710474515).

242131423533 is an equidigital number, since it uses as much as digits as its factorization.

242131423533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80710474514.

The product of its digits is 51840, while the sum is 33.

Adding to 242131423533 its reverse (335324131242), we get a palindrome (577455554775).

The spelling of 242131423533 in words is "two hundred forty-two billion, one hundred thirty-one million, four hundred twenty-three thousand, five hundred thirty-three".