100623503512 has 128 divisors (see below), whose sum is σ = 225558720000. Its totient is φ = 42052348800.

The previous prime is 100623503471. The next prime is 100623503527. The reversal of 100623503512 is 215305326001.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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, 18565939 + ... + 18571357.

It is an arithmetic number, because the mean of its divisors is an integer number (1762177500).

Almost surely, 2^100623503512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100623503512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112779360000).

100623503512 is an abundant number, since it is smaller than the sum of its proper divisors (124935216488).

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

100623503512 is a wasteful number, since it uses less digits than its factorization.

100623503512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614 (or 5596 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 100623503512 its reverse (215305326001), we get a palindrome (315928829513).

The spelling of 100623503512 in words is "one hundred billion, six hundred twenty-three million, five hundred three thousand, five hundred twelve".