242431013431 has 4 divisors (see below), whose sum is σ = 242452012864. Its totient is φ = 242410014000.

The previous prime is 242431013423. The next prime is 242431013441. The reversal of 242431013431 is 134310134242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242431013431 - 2³ = 242431013423 is a prime.

It is a super-2 number, since 2×242431013431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242431013431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242431013441) 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, 10482390 + ... + 10505491.

It is an arithmetic number, because the mean of its divisors is an integer number (60613003216).

Almost surely, 2^242431013431 is an apocalyptic number.

242431013431 is a deficient number, since it is larger than the sum of its proper divisors (20999433).

242431013431 is a wasteful number, since it uses less digits than its factorization.

242431013431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20999432.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 242431013431 its reverse (134310134242), we get a palindrome (376741147673).

The spelling of 242431013431 in words is "two hundred forty-two billion, four hundred thirty-one million, thirteen thousand, four hundred thirty-one".