203231103442120 has 128 divisors (see below), whose sum is σ = 508608822435840. Its totient is φ = 72578712913920.

The previous prime is 203231103442117. The next prime is 203231103442181. The reversal of 203231103442120 is 21244301132302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25928892 + ... + 32844628.

It is an arithmetic number, because the mean of its divisors is an integer number (3973506425280).

Almost surely, 2^{203231103442120} is an apocalyptic number.

203231103442120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203231103442120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254304411217920).

203231103442120 is an abundant number, since it is smaller than the sum of its proper divisors (305377718993720).

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

203231103442120 is a wasteful number, since it uses less digits than its factorization.

203231103442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917615 (or 6917611 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 203231103442120 its reverse (21244301132302), we get a palindrome (224475404574422).

The spelling of 203231103442120 in words is "two hundred three trillion, two hundred thirty-one billion, one hundred three million, four hundred forty-two thousand, one hundred twenty".