203011022110020 has 48 divisors (see below), whose sum is σ = 568447936986048. Its totient is φ = 54134646364800.

The previous prime is 203011022110009. The next prime is 203011022110021. The reversal of 203011022110020 is 20011220110302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (203011022110021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48803974 + ... + 52800093.

It is an arithmetic number, because the mean of its divisors is an integer number (11842665353876).

Almost surely, 2^{203011022110020} is an apocalyptic number.

203011022110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203011022110020 is an abundant number, since it is smaller than the sum of its proper divisors (365436914876028).

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

203011022110020 is a wasteful number, since it uses less digits than its factorization.

203011022110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101637380 (or 101637378 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 203011022110020 its reverse (20011220110302), we get a palindrome (223022242220322).

The spelling of 203011022110020 in words is "two hundred three trillion, eleven billion, twenty-two million, one hundred ten thousand, twenty".