242232515431 has 4 divisors (see below), whose sum is σ = 252764363952. Its totient is φ = 231700666912.

The previous prime is 242232515363. The next prime is 242232515443. The reversal of 242232515431 is 134515232242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134515232242 = 2 ⋅67257616121.

It is a cyclic number.

It is not a de Polignac number, because 242232515431 - 2¹³ = 242232507239 is a prime.

It is a super-2 number, since 2×242232515431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242232515531) 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, 5265924226 + ... + 5265924271.

It is an arithmetic number, because the mean of its divisors is an integer number (63191090988).

Almost surely, 2^242232515431 is an apocalyptic number.

242232515431 is a deficient number, since it is larger than the sum of its proper divisors (10531848521).

242232515431 is a wasteful number, since it uses less digits than its factorization.

242232515431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531848520.

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

Adding to 242232515431 its reverse (134515232242), we get a palindrome (376747747673).

The spelling of 242232515431 in words is "two hundred forty-two billion, two hundred thirty-two million, five hundred fifteen thousand, four hundred thirty-one".