203111330204020 has 96 divisors (see below), whose sum is σ = 495414629982720. Its totient is φ = 68507114618880.

The previous prime is 203111330204011. The next prime is 203111330204033. The reversal of 203111330204020 is 20402033111302.

It is a junction number, because it is equal to n+sod(n) for n = 203111330203982 and 203111330204000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17813805 + ... + 26898964.

It is an arithmetic number, because the mean of its divisors is an integer number (5160569062320).

Almost surely, 2^{203111330204020} is an apocalyptic number.

203111330204020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203111330204020 is an abundant number, since it is smaller than the sum of its proper divisors (292303299778700).

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

203111330204020 is a wasteful number, since it uses less digits than its factorization.

203111330204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44713313 (or 44713311 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203111330204020 its reverse (20402033111302), we get a palindrome (223513363315322).

The spelling of 203111330204020 in words is "two hundred three trillion, one hundred eleven billion, three hundred thirty million, two hundred four thousand, twenty".