42021344042312 has 32 divisors (see below), whose sum is σ = 81682958390400. Its totient is φ = 20242351424064.

The previous prime is 42021344042311. The next prime is 42021344042329. The reversal of 42021344042312 is 21324044312024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42021344042311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195493538 + ... + 195708369.

It is an arithmetic number, because the mean of its divisors is an integer number (2552592449700).

Almost surely, 2^{42021344042312} is an apocalyptic number.

It is an amenable number.

42021344042312 is a deficient number, since it is larger than the sum of its proper divisors (39661614348088).

42021344042312 is a wasteful number, since it uses less digits than its factorization.

42021344042312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391202405 (or 391202401 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 42021344042312 its reverse (21324044312024), we get a palindrome (63345388354336).

The spelling of 42021344042312 in words is "forty-two trillion, twenty-one billion, three hundred forty-four million, forty-two thousand, three hundred twelve".