203400011240 has 16 divisors (see below), whose sum is σ = 457650025380. Its totient is φ = 81360004480.

The previous prime is 203400011201. The next prime is 203400011263. The reversal of 203400011240 is 42110004302.

It can be written as a sum of positive squares in 2 ways, for example, as 203363117764 + 36893476 = 450958^2 + 6074^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542500101 + ... + 2542500180.

Almost surely, 2^203400011240 is an apocalyptic number.

203400011240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203400011240 is an abundant number, since it is smaller than the sum of its proper divisors (254250014140).

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

203400011240 is a wasteful number, since it uses less digits than its factorization.

203400011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085000292 (or 5085000288 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 203400011240 its reverse (42110004302), we get a palindrome (245510015542).

The spelling of 203400011240 in words is "two hundred three billion, four hundred million, eleven thousand, two hundred forty".