203202041021420 has 96 divisors (see below), whose sum is σ = 491097809623680. Its totient is φ = 69182266982400.

The previous prime is 203202041021341. The next prime is 203202041021423. The reversal of 203202041021420 is 24120140202302.

It is not an unprimeable number, because it can be changed into a prime (203202041021423) 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, 32302766 + ... + 38077194.

It is an arithmetic number, because the mean of its divisors is an integer number (5115602183580).

Almost surely, 2^{203202041021420} is an apocalyptic number.

203202041021420 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 203202041021420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245548904811840).

203202041021420 is an abundant number, since it is smaller than the sum of its proper divisors (287895768602260).

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

203202041021420 is a wasteful number, since it uses less digits than its factorization.

203202041021420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776203 (or 5776201 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 203202041021420 its reverse (24120140202302), we get a palindrome (227322181223722).

The spelling of 203202041021420 in words is "two hundred three trillion, two hundred two billion, forty-one million, twenty-one thousand, four hundred twenty".