42521131102 has 64 divisors (see below), whose sum is σ = 70413235200. Its totient is φ = 19177804800.

The previous prime is 42521131087. The next prime is 42521131109. The reversal of 42521131102 is 20113112524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42521131109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18085227 + ... + 18087577.

It is an arithmetic number, because the mean of its divisors is an integer number (1100206800).

Almost surely, 2^42521131102 is an apocalyptic number.

42521131102 is a deficient number, since it is larger than the sum of its proper divisors (27892104098).

42521131102 is a wasteful number, since it uses less digits than its factorization.

42521131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 42521131102 its reverse (20113112524), we get a palindrome (62634243626).

The spelling of 42521131102 in words is "forty-two billion, five hundred twenty-one million, one hundred thirty-one thousand, one hundred two".