42100124445 has 24 divisors (see below), whose sum is σ = 73852754976. Its totient is φ = 22182874848.

The previous prime is 42100124431. The next prime is 42100124447. The reversal of 42100124445 is 54442100124.

42100124445 is a `hidden beast` number, since 4 + 210 + 0 + 1 + 2 + 4 + 445 = 666.

It is not a de Polignac number, because 42100124445 - 2¹⁹ = 42099600157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42100124447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5632159 + ... + 5639628.

It is an arithmetic number, because the mean of its divisors is an integer number (3077198124).

Almost surely, 2^42100124445 is an apocalyptic number.

42100124445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42100124445 is a deficient number, since it is larger than the sum of its proper divisors (31752630531).

42100124445 is a wasteful number, since it uses less digits than its factorization.

42100124445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11271881 (or 11271878 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 42100124445 its reverse (54442100124), we get a palindrome (96542224569).

The spelling of 42100124445 in words is "forty-two billion, one hundred million, one hundred twenty-four thousand, four hundred forty-five".