203310103120 has 80 divisors (see below), whose sum is σ = 477538364160. Its totient is φ = 80494169600.

The previous prime is 203310103099. The next prime is 203310103121. The reversal of 203310103120 is 21301013302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 203310103094 and 203310103103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203310103121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4051785 + ... + 4101655.

It is an arithmetic number, because the mean of its divisors is an integer number (5969229552).

Almost surely, 2^203310103120 is an apocalyptic number.

203310103120 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 203310103120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238769182080).

203310103120 is an abundant number, since it is smaller than the sum of its proper divisors (274228261040).

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

203310103120 is a wasteful number, since it uses less digits than its factorization.

203310103120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50404 (or 50398 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 203310103120 its reverse (21301013302), we get a palindrome (224611116422).

The spelling of 203310103120 in words is "two hundred three billion, three hundred ten million, one hundred three thousand, one hundred twenty".