203123323100220 has 24 divisors (see below), whose sum is σ = 568745304680784. Its totient is φ = 54166219493376.

The previous prime is 203123323100197. The next prime is 203123323100231. The reversal of 203123323100220 is 22001323321302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692694359109 + ... + 1692694359228.

It is an arithmetic number, because the mean of its divisors is an integer number (23697721028366).

Almost surely, 2^{203123323100220} is an apocalyptic number.

203123323100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203123323100220 is an abundant number, since it is smaller than the sum of its proper divisors (365621981580564).

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

203123323100220 is a wasteful number, since it uses less digits than its factorization.

203123323100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385388718349 (or 3385388718347 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 203123323100220 its reverse (22001323321302), we get a palindrome (225124646421522).

The spelling of 203123323100220 in words is "two hundred three trillion, one hundred twenty-three billion, three hundred twenty-three million, one hundred thousand, two hundred twenty".