203424423342 has 64 divisors (see below), whose sum is σ = 472582978560. Its totient is φ = 57176292096.

The previous prime is 203424423329. The next prime is 203424423347. The reversal of 203424423342 is 243324424302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203424423347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598263 + ... + 874509.

It is an arithmetic number, because the mean of its divisors is an integer number (7384109040).

Almost surely, 2^203424423342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203424423342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236291489280).

203424423342 is an abundant number, since it is smaller than the sum of its proper divisors (269158555218).

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

203424423342 is a wasteful number, since it uses less digits than its factorization.

203424423342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276545.

The product of its (nonzero) digits is 110592, while the sum is 33.

Adding to 203424423342 its reverse (243324424302), we get a palindrome (446748847644).

The spelling of 203424423342 in words is "two hundred three billion, four hundred twenty-four million, four hundred twenty-three thousand, three hundred forty-two".