203113434112 has 88 divisors (see below), whose sum is σ = 411914698560. Its totient is φ = 100089200640.

The previous prime is 203113434067. The next prime is 203113434143. The reversal of 203113434112 is 211434311302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51852378 + ... + 51856294.

Almost surely, 2^203113434112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203113434112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205957349280).

203113434112 is an abundant number, since it is smaller than the sum of its proper divisors (208801264448).

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

203113434112 is an equidigital number, since it uses as much as digits as its factorization.

203113434112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657 (or 4639 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 203113434112 its reverse (211434311302), we get a palindrome (414547745414).

The spelling of 203113434112 in words is "two hundred three billion, one hundred thirteen million, four hundred thirty-four thousand, one hundred twelve".