42131212143 has 24 divisors (see below), whose sum is σ = 58479014448. Its totient is φ = 26970967296.

The previous prime is 42131212139. The next prime is 42131212177. The reversal of 42131212143 is 34121213124.

It is not a de Polignac number, because 42131212143 - 2² = 42131212139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131212243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291255 + ... + 411207.

It is an arithmetic number, because the mean of its divisors is an integer number (2436625602).

Almost surely, 2^42131212143 is an apocalyptic number.

42131212143 is a deficient number, since it is larger than the sum of its proper divisors (16347802305).

42131212143 is a wasteful number, since it uses less digits than its factorization.

42131212143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120103 (or 120056 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 42131212143 its reverse (34121213124), we get a palindrome (76252425267).

The spelling of 42131212143 in words is "forty-two billion, one hundred thirty-one million, two hundred twelve thousand, one hundred forty-three".