42424212231 has 12 divisors (see below), whose sum is σ = 61284392208. Its totient is φ = 28280512224.

The previous prime is 42424212223. The next prime is 42424212239. The reversal of 42424212231 is 13221242424.

It is a happy number.

42424212231 is a `hidden beast` number, since 4 + 2 + 4 + 2 + 421 + 2 + 231 = 666.

It is an interprime number because it is at equal distance from previous prime (42424212223) and next prime (42424212239).

It is not a de Polignac number, because 42424212231 - 2³ = 42424212223 is a prime.

It is a super-2 number, since 2×42424212231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42424212195 and 42424212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42424212239) 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 11 ways as a sum of consecutive naturals, for example, 70270 + ... + 299643.

It is an arithmetic number, because the mean of its divisors is an integer number (5107032684).

Almost surely, 2^42424212231 is an apocalyptic number.

42424212231 is a deficient number, since it is larger than the sum of its proper divisors (18860179977).

42424212231 is a wasteful number, since it uses less digits than its factorization.

42424212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382662 (or 382659 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 42424212231 its reverse (13221242424), we get a palindrome (55645454655).

The spelling of 42424212231 in words is "forty-two billion, four hundred twenty-four million, two hundred twelve thousand, two hundred thirty-one".