120100105544 has 8 divisors (see below), whose sum is σ = 225187697910. Its totient is φ = 60050052768.

The previous prime is 120100105523. The next prime is 120100105549. The reversal of 120100105544 is 445501001021.

It can be written as a sum of positive squares in only one way, i.e., 111715040644 + 8385064900 = 334238^2 + 91570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (120100105549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506256589 + ... + 7506256604.

Almost surely, 2^120100105544 is an apocalyptic number.

It is an amenable number.

120100105544 is a deficient number, since it is larger than the sum of its proper divisors (105087592366).

120100105544 is a wasteful number, since it uses less digits than its factorization.

120100105544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15012513199 (or 15012513195 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 120100105544 its reverse (445501001021), we get a palindrome (565601106565).

The spelling of 120100105544 in words is "one hundred twenty billion, one hundred million, one hundred five thousand, five hundred forty-four".