203320311102 has 48 divisors (see below), whose sum is σ = 451918172160. Its totient is φ = 66033937296.

The previous prime is 203320311101. The next prime is 203320311127. The reversal of 203320311102 is 201113023302.

203320311102 is a `hidden beast` number, since 20 + 3 + 320 + 311 + 10 + 2 = 666.

It is a super-2 number, since 2×203320311102² (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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (203320311101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350202 + ... + 727517.

It is an arithmetic number, because the mean of its divisors is an integer number (9414961920).

Almost surely, 2^203320311102 is an apocalyptic number.

203320311102 is an abundant number, since it is smaller than the sum of its proper divisors (248597861058).

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

203320311102 is a wasteful number, since it uses less digits than its factorization.

203320311102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077997 (or 1077994 counting only the distinct ones).

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

Adding to 203320311102 its reverse (201113023302), we get a palindrome (404433334404).

The spelling of 203320311102 in words is "two hundred three billion, three hundred twenty million, three hundred eleven thousand, one hundred two".