203123424244 has 48 divisors (see below), whose sum is σ = 412339092480. Its totient is φ = 86780517120.

The previous prime is 203123424239. The next prime is 203123424271. The reversal of 203123424244 is 442424321302.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2702209 + ... + 2776360.

It is an arithmetic number, because the mean of its divisors is an integer number (8590397760).

Almost surely, 2^203123424244 is an apocalyptic number.

It is an amenable number.

203123424244 is an abundant number, since it is smaller than the sum of its proper divisors (209215668236).

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

203123424244 is a wasteful number, since it uses less digits than its factorization.

203123424244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478640 (or 5478638 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 203123424244 its reverse (442424321302), we get a palindrome (645547745546).

The spelling of 203123424244 in words is "two hundred three billion, one hundred twenty-three million, four hundred twenty-four thousand, two hundred forty-four".