42102321100 has 72 divisors (see below), whose sum is σ = 108953526528. Its totient is φ = 13807464000.

The previous prime is 42102321083. The next prime is 42102321109. The reversal of 42102321100 is 112320124.

It is not an unprimeable number, because it can be changed into a prime (42102321109) 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, 1291426 + ... + 1323625.

It is an arithmetic number, because the mean of its divisors is an integer number (1513243424).

Almost surely, 2^42102321100 is an apocalyptic number.

It is an amenable number.

42102321100 is an abundant number, since it is smaller than the sum of its proper divisors (66851205428).

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

42102321100 is a wasteful number, since it uses less digits than its factorization.

42102321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615095 (or 2615088 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 42102321100 its reverse (112320124), we get a palindrome (42214641224).

The spelling of 42102321100 in words is "forty-two billion, one hundred two million, three hundred twenty-one thousand, one hundred".