42243031356 has 24 divisors (see below), whose sum is σ = 99136829904. Its totient is φ = 13999616640.

The previous prime is 42243031319. The next prime is 42243031357. The reversal of 42243031356 is 65313034224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243031357) 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, 10172065 + ... + 10176216.

It is an arithmetic number, because the mean of its divisors is an integer number (4130701246).

Almost surely, 2^42243031356 is an apocalyptic number.

It is an amenable number.

42243031356 is an abundant number, since it is smaller than the sum of its proper divisors (56893798548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42243031356 is a wasteful number, since it uses less digits than its factorization.

42243031356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20348461 (or 20348459 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 42243031356 in words is "forty-two billion, two hundred forty-three million, thirty-one thousand, three hundred fifty-six".