100442124555 has 32 divisors (see below), whose sum is σ = 165081167424. Its totient is φ = 52111742976.

The previous prime is 100442124551. The next prime is 100442124619. The reversal of 100442124555 is 555421244001.

It is a happy number.

It is not a de Polignac number, because 100442124555 - 2² = 100442124551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100442124551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3792439 + ... + 3818831.

It is an arithmetic number, because the mean of its divisors is an integer number (5158786482).

Almost surely, 2^100442124555 is an apocalyptic number.

100442124555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100442124555 is a deficient number, since it is larger than the sum of its proper divisors (64639042869).

100442124555 is a wasteful number, since it uses less digits than its factorization.

100442124555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33295.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 100442124555 its reverse (555421244001), we get a palindrome (655863368556).

The spelling of 100442124555 in words is "one hundred billion, four hundred forty-two million, one hundred twenty-four thousand, five hundred fifty-five".