203421400032 has 24 divisors (see below), whose sum is σ = 533981175336. Its totient is φ = 67807133312.

The previous prime is 203421399997. The next prime is 203421400043. The reversal of 203421400032 is 230004124302.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 203421399981 and 203421400008.

It is a congruent number.

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, 1059486363 + ... + 1059486554.

It is an arithmetic number, because the mean of its divisors is an integer number (22249215639).

Almost surely, 2^203421400032 is an apocalyptic number.

It is an amenable number.

203421400032 is an abundant number, since it is smaller than the sum of its proper divisors (330559775304).

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

203421400032 is a wasteful number, since it uses less digits than its factorization.

203421400032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118972930 (or 2118972922 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 203421400032 its reverse (230004124302), we get a palindrome (433425524334).

The spelling of 203421400032 in words is "two hundred three billion, four hundred twenty-one million, four hundred thousand, thirty-two".