42112102142 has 24 divisors (see below), whose sum is σ = 69898815000. Its totient is φ = 19013379440.

The previous prime is 42112102121. The next prime is 42112102147. The reversal of 42112102142 is 24120121124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112102147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547892 + ... + 620007.

It is an arithmetic number, because the mean of its divisors is an integer number (2912450625).

Almost surely, 2^42112102142 is an apocalyptic number.

42112102142 is a deficient number, since it is larger than the sum of its proper divisors (27786712858).

42112102142 is a wasteful number, since it uses less digits than its factorization.

42112102142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168072 (or 1168061 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 42112102142 its reverse (24120121124), we get a palindrome (66232223266).

The spelling of 42112102142 in words is "forty-two billion, one hundred twelve million, one hundred two thousand, one hundred forty-two".