203113030340 has 48 divisors (see below), whose sum is σ = 469662266304. Its totient is φ = 73169001600.

The previous prime is 203113030327. The next prime is 203113030411. The reversal of 203113030340 is 43030311302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4290671 + ... + 4337750.

It is an arithmetic number, because the mean of its divisors is an integer number (9784630548).

Almost surely, 2^203113030340 is an apocalyptic number.

203113030340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203113030340 is an abundant number, since it is smaller than the sum of its proper divisors (266549235964).

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

203113030340 is a wasteful number, since it uses less digits than its factorization.

203113030340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628548 (or 8628546 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203113030340 its reverse (43030311302), we get a palindrome (246143341642).

The spelling of 203113030340 in words is "two hundred three billion, one hundred thirteen million, thirty thousand, three hundred forty".