203112020 has 12 divisors (see below), whose sum is σ = 426535284. Its totient is φ = 81244800.

The previous prime is 203111977. The next prime is 203112023. The reversal of 203112020 is 20211302.

It is a happy number.

203112020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 125037124 + 78074896 = 11182^2 + 8836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203111992 and 203112010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5077781 + ... + 5077820.

It is an arithmetic number, because the mean of its divisors is an integer number (35544607).

Almost surely, 2^203112020 is an apocalyptic number.

203112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203112020 is an abundant number, since it is smaller than the sum of its proper divisors (223423264).

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

203112020 is a wasteful number, since it uses less digits than its factorization.

203112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155610 (or 10155608 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 203112020 is about 14251.7374379407. The cubic root of 203112020 is about 587.8211505048.

Adding to 203112020 its reverse (20211302), we get a palindrome (223323322).

The spelling of 203112020 in words is "two hundred three million, one hundred twelve thousand, twenty".