203442212000000 has 252 divisors, whose sum is σ = 523980357965568. Its totient is φ = 78751776000000.

The previous prime is 203442211999997. The next prime is 203442212000021. The reversal of 203442212000000 is 212244302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 123179669 + ... + 124820331.

It is an arithmetic number, because the mean of its divisors is an integer number (2079287134784).

Almost surely, 2^{203442212000000} is an apocalyptic number.

203442212000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203442212000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261990178982784).

203442212000000 is an abundant number, since it is smaller than the sum of its proper divisors (320538145965568).

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

203442212000000 is an frugal number, since it uses more digits than its factorization.

203442212000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640740 (or 1640701 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 203442212000000 its reverse (212244302), we get a palindrome (203442424244302).

The spelling of 203442212000000 in words is "two hundred three trillion, four hundred forty-two billion, two hundred twelve million", and thus it is an aban number.