203110161154100 has 72 divisors (see below), whose sum is σ = 443421943845888. Its totient is φ = 80752066531200.

The previous prime is 203110161154079. The next prime is 203110161154127. The reversal of 203110161154100 is 1451161011302.

It is a self number, because there is not a number n which added to its sum of digits gives 203110161154100.

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 23 ways as a sum of consecutive naturals, for example, 18784937 + ... + 27551663.

Almost surely, 2^{203110161154100} is an apocalyptic number.

203110161154100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203110161154100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221710971922944).

203110161154100 is an abundant number, since it is smaller than the sum of its proper divisors (240311782691788).

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

203110161154100 is a wasteful number, since it uses less digits than its factorization.

203110161154100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8768145 (or 8768138 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 203110161154100 in words is "two hundred three trillion, one hundred ten billion, one hundred sixty-one million, one hundred fifty-four thousand, one hundred".