203210100120 has 96 divisors (see below), whose sum is σ = 629930522160. Its totient is φ = 52441286400.

The previous prime is 203210100101. The next prime is 203210100139. The reversal of 203210100120 is 21001012302.

It is an interprime number because it is at equal distance from previous prime (203210100101) and next prime (203210100139).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 203210100096 and 203210100105.

It is a congruent number.

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, 765751 + ... + 996390.

Almost surely, 2^203210100120 is an apocalyptic number.

203210100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203210100120 is an abundant number, since it is smaller than the sum of its proper divisors (426720422040).

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

203210100120 is a wasteful number, since it uses less digits than its factorization.

203210100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762217 (or 1762182 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 203210100120 its reverse (21001012302), we get a palindrome (224211112422).

The spelling of 203210100120 in words is "two hundred three billion, two hundred ten million, one hundred thousand, one hundred twenty".