42121053112 has 16 divisors (see below), whose sum is σ = 79155258840. Its totient is φ = 21012984096.

The previous prime is 42121053049. The next prime is 42121053113. The reversal of 42121053112 is 21135012124.

42121053112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42121053113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5939043 + ... + 5946130.

Almost surely, 2^42121053112 is an apocalyptic number.

It is an amenable number.

42121053112 is a deficient number, since it is larger than the sum of its proper divisors (37034205728).

42121053112 is a wasteful number, since it uses less digits than its factorization.

42121053112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11885622 (or 11885618 counting only the distinct ones).

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

Adding to 42121053112 its reverse (21135012124), we get a palindrome (63256065236).

The spelling of 42121053112 in words is "forty-two billion, one hundred twenty-one million, fifty-three thousand, one hundred twelve".