42123403244 has 24 divisors (see below), whose sum is σ = 80391312960. Its totient is φ = 19195473024.

The previous prime is 42123403193. The next prime is 42123403249. The reversal of 42123403244 is 44230432124.

It is a super-2 number, since 2×42123403244² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42123403249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5122889 + ... + 5131104.

It is an arithmetic number, because the mean of its divisors is an integer number (3349638040).

Almost surely, 2^42123403244 is an apocalyptic number.

It is an amenable number.

42123403244 is a deficient number, since it is larger than the sum of its proper divisors (38267909716).

42123403244 is a wasteful number, since it uses less digits than its factorization.

42123403244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10254089 (or 10254087 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 42123403244 its reverse (44230432124), we get a palindrome (86353835368).

The spelling of 42123403244 in words is "forty-two billion, one hundred twenty-three million, four hundred three thousand, two hundred forty-four".