203231130102 has 192 divisors, whose sum is σ = 607198685184. Its totient is φ = 47409649920.

The previous prime is 203231130101. The next prime is 203231130127. The reversal of 203231130102 is 201031132302.

203231130102 is a `hidden beast` number, since 20 + 32 + 311 + 301 + 0 + 2 = 666.

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 (203231130101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 514243 + ... + 819089.

It is an arithmetic number, because the mean of its divisors is an integer number (3162493152).

Almost surely, 2^203231130102 is an apocalyptic number.

203231130102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 203231130102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303599342592).

203231130102 is an abundant number, since it is smaller than the sum of its proper divisors (403967555082).

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

203231130102 is a wasteful number, since it uses less digits than its factorization.

203231130102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304923 (or 304920 counting only the distinct ones).

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

Adding to 203231130102 its reverse (201031132302), we get a palindrome (404262262404).

It can be divided in two parts, 203231 and 130102, that added together give a palindrome (333333).

The spelling of 203231130102 in words is "two hundred three billion, two hundred thirty-one million, one hundred thirty thousand, one hundred two".