203103223020 has 72 divisors (see below), whose sum is σ = 622431167904. Its totient is φ = 53602495488.

The previous prime is 203103223003. The next prime is 203103223051. The reversal of 203103223020 is 20322301302.

It is a happy number.

203103223020 is a `hidden beast` number, since 2 + 0 + 310 + 322 + 30 + 2 + 0 = 666.

203103223020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203103223020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203103222984 and 203103223002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5798784 + ... + 5833703.

It is an arithmetic number, because the mean of its divisors is an integer number (8644877332).

Almost surely, 2^203103223020 is an apocalyptic number.

203103223020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203103223020 is an abundant number, since it is smaller than the sum of its proper divisors (419327944884).

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

203103223020 is a wasteful number, since it uses less digits than its factorization.

203103223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11632599 (or 11632594 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 203103223020 its reverse (20322301302), we get a palindrome (223425524322).

The spelling of 203103223020 in words is "two hundred three billion, one hundred three million, two hundred twenty-three thousand, twenty".