203023404032 has 44 divisors (see below), whose sum is σ = 407018847720. Its totient is φ = 101218983936.

The previous prime is 203023404011. The next prime is 203023404049. The reversal of 203023404032 is 230404320302.

It is a junction number, because it is equal to n+sod(n) for n = 203023403989 and 203023404007.

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, 69644 + ... + 641012.

Almost surely, 2^203023404032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203023404032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203509423860).

203023404032 is an abundant number, since it is smaller than the sum of its proper divisors (203995443688).

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

203023404032 is an equidigital number, since it uses as much as digits as its factorization.

203023404032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571736 (or 571718 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 203023404032 its reverse (230404320302), we get a palindrome (433427724334).

The spelling of 203023404032 in words is "two hundred three billion, twenty-three million, four hundred four thousand, thirty-two".