203113040430320 has 40 divisors (see below), whose sum is σ = 492769898091936. Its totient is φ = 77712815468288.

The previous prime is 203113040430263. The next prime is 203113040430337. The reversal of 203113040430320 is 23034040311302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 203113040430320.

It is a congruent number.

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, 55193759147 + ... + 55193762826.

Almost surely, 2^{203113040430320} is an apocalyptic number.

203113040430320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203113040430320 is an abundant number, since it is smaller than the sum of its proper divisors (289656857661616).

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

203113040430320 is a wasteful number, since it uses less digits than its factorization.

203113040430320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110387522009 (or 110387522003 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 203113040430320 its reverse (23034040311302), we get a palindrome (226147080741622).

The spelling of 203113040430320 in words is "two hundred three trillion, one hundred thirteen billion, forty million, four hundred thirty thousand, three hundred twenty".