42112102540440 has 64 divisors (see below), whose sum is σ = 126337868143200. Its totient is φ = 11229755297792.

The previous prime is 42112102540423. The next prime is 42112102540447. The reversal of 42112102540440 is 4404520121124.

42112102540440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42112102540398 and 42112102540407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112102540447) 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 15 ways as a sum of consecutive naturals, for example, 7777354 + ... + 12029606.

Almost surely, 2^{42112102540440} is an apocalyptic number.

42112102540440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42112102540440 is an abundant number, since it is smaller than the sum of its proper divisors (84225765602760).

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

42112102540440 is a wasteful number, since it uses less digits than its factorization.

42112102540440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334796 (or 4334792 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 42112102540440 its reverse (4404520121124), we get a palindrome (46516622661564).

The spelling of 42112102540440 in words is "forty-two trillion, one hundred twelve billion, one hundred two million, five hundred forty thousand, four hundred forty".