203204111421012 has 96 divisors (see below), whose sum is σ = 513044757012480. Its totient is φ = 62227329494400.

The previous prime is 203204111421011. The next prime is 203204111421037. The reversal of 203204111421012 is 210124111402302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203204111421011) 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, 40764189 + ... + 45476667.

It is an arithmetic number, because the mean of its divisors is an integer number (5344216218880).

Almost surely, 2^{203204111421012} 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 203204111421012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256522378506240).

203204111421012 is an abundant number, since it is smaller than the sum of its proper divisors (309840645591468).

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

203204111421012 is a wasteful number, since it uses less digits than its factorization.

203204111421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4713813 (or 4713811 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 203204111421012 its reverse (210124111402302), we get a palindrome (413328222823314).

The spelling of 203204111421012 in words is "two hundred three trillion, two hundred four billion, one hundred eleven million, four hundred twenty-one thousand, twelve".