203213110030020 has 36 divisors (see below), whose sum is σ = 616413100424940. Its totient is φ = 54190162674624.

The previous prime is 203213110030003. The next prime is 203213110030033. The reversal of 203213110030020 is 20030011312302.

203213110030020 is a `hidden beast` number, since 2 + 0 + 32 + 1 + 311 + 0 + 0 + 300 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 110916662763204 + 92296447266816 = 10531698^2 + 9607104^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 203213110029975 and 203213110030002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564480861015 + ... + 564480861374.

It is an arithmetic number, because the mean of its divisors is an integer number (17122586122915).

Almost surely, 2^{203213110030020} is an apocalyptic number.

203213110030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203213110030020 is an abundant number, since it is smaller than the sum of its proper divisors (413199990394920).

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

203213110030020 is a wasteful number, since it uses less digits than its factorization.

203213110030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128961722404 (or 1128961722399 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203213110030020 its reverse (20030011312302), we get a palindrome (223243121342322).

The spelling of 203213110030020 in words is "two hundred three trillion, two hundred thirteen billion, one hundred ten million, thirty thousand, twenty".