100503420520144 has 20 divisors (see below), whose sum is σ = 194727035734560. Its totient is φ = 50251282266080.

The previous prime is 100503420520093. The next prime is 100503420520163. The reversal of 100503420520144 is 441025024305001.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24808054 + ... + 28573525.

It is an arithmetic number, because the mean of its divisors is an integer number (9736351786728).

Almost surely, 2^{100503420520144} is an apocalyptic number.

It is an amenable number.

100503420520144 is a deficient number, since it is larger than the sum of its proper divisors (94223615214416).

100503420520144 is a wasteful number, since it uses less digits than its factorization.

100503420520144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53499258 (or 53499252 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 100503420520144 its reverse (441025024305001), we get a palindrome (541528444825145).

The spelling of 100503420520144 in words is "one hundred trillion, five hundred three billion, four hundred twenty million, five hundred twenty thousand, one hundred forty-four".