203211344424 has 64 divisors (see below), whose sum is σ = 554325120000. Its totient is φ = 61566710720.

The previous prime is 203211344393. The next prime is 203211344471. The reversal of 203211344424 is 424443112302.

It is a junction number, because it is equal to n+sod(n) for n = 203211344391 and 203211344400.

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, 1270657 + ... + 1421615.

It is an arithmetic number, because the mean of its divisors is an integer number (8661330000).

Almost surely, 2^203211344424 is an apocalyptic number.

203211344424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

203211344424 is an abundant number, since it is smaller than the sum of its proper divisors (351113775576).

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

203211344424 is a wasteful number, since it uses less digits than its factorization.

203211344424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156078 (or 156074 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 203211344424 its reverse (424443112302), we get a palindrome (627654456726).

The spelling of 203211344424 in words is "two hundred three billion, two hundred eleven million, three hundred forty-four thousand, four hundred twenty-four".