203111013020 has 48 divisors (see below), whose sum is σ = 428109040800. Its totient is φ = 80944621824.

The previous prime is 203111013013. The next prime is 203111013059. The reversal of 203111013020 is 20310111302.

203111013020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203111013020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203111012986 and 203111013004.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 8902067 + ... + 8924853.

It is an arithmetic number, because the mean of its divisors is an integer number (8918938350).

Almost surely, 2^203111013020 is an apocalyptic number.

203111013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203111013020 is an abundant number, since it is smaller than the sum of its proper divisors (224998027780).

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

203111013020 is a wasteful number, since it uses less digits than its factorization.

203111013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24422 (or 24420 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 203111013020 its reverse (20310111302), we get a palindrome (223421124322).

The spelling of 203111013020 in words is "two hundred three billion, one hundred eleven million, thirteen thousand, twenty".