42215343431 has 8 divisors (see below), whose sum is σ = 42514241520. Its totient is φ = 41916932352.

The previous prime is 42215343421. The next prime is 42215343437. The reversal of 42215343431 is 13434351224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42215343431 - 2⁶ = 42215343367 is a prime.

It is a super-2 number, since 2×42215343431² (a number of 22 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 (42215343437) 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 7 ways as a sum of consecutive naturals, for example, 53111 + ... + 295383.

It is an arithmetic number, because the mean of its divisors is an integer number (5314280190).

Almost surely, 2^42215343431 is an apocalyptic number.

42215343431 is a deficient number, since it is larger than the sum of its proper divisors (298898089).

42215343431 is a wasteful number, since it uses less digits than its factorization.

42215343431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243505.

The product of its digits is 34560, while the sum is 32.

Adding to 42215343431 its reverse (13434351224), we get a palindrome (55649694655).

The spelling of 42215343431 in words is "forty-two billion, two hundred fifteen million, three hundred forty-three thousand, four hundred thirty-one".