42112106720 has 24 divisors (see below), whose sum is σ = 99489852504. Its totient is φ = 16844842624.

The previous prime is 42112106671. The next prime is 42112106723. The reversal of 42112106720 is 2760121124.

It is a self number, because there is not a number n which added to its sum of digits gives 42112106720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112106723) 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, 131600174 + ... + 131600493.

It is an arithmetic number, because the mean of its divisors is an integer number (4145410521).

Almost surely, 2^42112106720 is an apocalyptic number.

42112106720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42112106720 is an abundant number, since it is smaller than the sum of its proper divisors (57377745784).

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

42112106720 is a wasteful number, since it uses less digits than its factorization.

42112106720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263200682 (or 263200674 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 42112106720 its reverse (2760121124), we get a palindrome (44872227844).

The spelling of 42112106720 in words is "forty-two billion, one hundred twelve million, one hundred six thousand, seven hundred twenty".