65242434231 has 20 divisors (see below), whose sum is σ = 104957915832. Its totient is φ = 40149189648.

The previous prime is 65242434227. The next prime is 65242434239. The reversal of 65242434231 is 13243424256.

It is not a de Polignac number, because 65242434231 - 2² = 65242434227 is a prime.

It is a super-2 number, since 2×65242434231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65242434239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30978261 + ... + 30980366.

Almost surely, 2^65242434231 is an apocalyptic number.

65242434231 is a deficient number, since it is larger than the sum of its proper divisors (39715481601).

65242434231 is a wasteful number, since it uses less digits than its factorization.

65242434231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61958652 (or 61958643 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 65242434231 its reverse (13243424256), we get a palindrome (78485858487).

The spelling of 65242434231 in words is "sixty-five billion, two hundred forty-two million, four hundred thirty-four thousand, two hundred thirty-one".