203330132021021 has 4 divisors (see below), whose sum is σ = 203775055723932. Its totient is φ = 202885208318112.

The previous prime is 203330132020937. The next prime is 203330132021101. The reversal of 203330132021021 is 120120231033302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97206881016025 + 106123251004996 = 9859355^2 + 10301614^2 .

It is a cyclic number.

It is not a de Polignac number, because 203330132021021 - 2¹⁰ = 203330132019997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203330102021021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222461850770 + ... + 222461851683.

It is an arithmetic number, because the mean of its divisors is an integer number (50943763930983).

Almost surely, 2^{203330132021021} is an apocalyptic number.

It is an amenable number.

203330132021021 is a deficient number, since it is larger than the sum of its proper divisors (444923702911).

203330132021021 is an equidigital number, since it uses as much as digits as its factorization.

203330132021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444923702910.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203330132021021 its reverse (120120231033302), we get a palindrome (323450363054323).

The spelling of 203330132021021 in words is "two hundred three trillion, three hundred thirty billion, one hundred thirty-two million, twenty-one thousand, twenty-one".