42434202231 has 12 divisors (see below), whose sum is σ = 64899368352. Its totient is φ = 26625381696.

The previous prime is 42434202133. The next prime is 42434202233. The reversal of 42434202231 is 13220243424.

42434202231 is a `hidden beast` number, since 4 + 2 + 4 + 3 + 420 + 2 + 231 = 666.

42434202231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-42434202231 is a prime.

It is a super-2 number, since 2×42434202231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42434202195 and 42434202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42434202233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138673711 + ... + 138674016.

It is an arithmetic number, because the mean of its divisors is an integer number (5408280696).

Almost surely, 2^42434202231 is an apocalyptic number.

42434202231 is a deficient number, since it is larger than the sum of its proper divisors (22465166121).

42434202231 is a wasteful number, since it uses less digits than its factorization.

42434202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277347750 (or 277347747 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 42434202231 its reverse (13220243424), we get a palindrome (55654445655).

The spelling of 42434202231 in words is "forty-two billion, four hundred thirty-four million, two hundred two thousand, two hundred thirty-one".