203424012340 has 24 divisors (see below), whose sum is σ = 431990322120. Its totient is φ = 80455339008.

The previous prime is 203424012331. The next prime is 203424012343. The reversal of 203424012340 is 43210424302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6605788176 + 196818224164 = 81276^2 + 443642^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203424012343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57139797 + ... + 57143356.

It is an arithmetic number, because the mean of its divisors is an integer number (17999596755).

Almost surely, 2^203424012340 is an apocalyptic number.

203424012340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203424012340 is an abundant number, since it is smaller than the sum of its proper divisors (228566309780).

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

203424012340 is a wasteful number, since it uses less digits than its factorization.

203424012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114283251 (or 114283249 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 203424012340 its reverse (43210424302), we get a palindrome (246634436642).

The spelling of 203424012340 in words is "two hundred three billion, four hundred twenty-four million, twelve thousand, three hundred forty".