203320021232101 has 4 divisors (see below), whose sum is σ = 203321962469152. Its totient is φ = 203318079995052.

The previous prime is 203320021232089. The next prime is 203320021232117. The reversal of 203320021232101 is 101232120023302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203320021232101 - 2³⁷ = 203182582278629 is a prime.

It is a super-2 number, since 2×203320021232101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203320021272101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970461411 + ... + 970670896.

It is an arithmetic number, because the mean of its divisors is an integer number (50830490617288).

Almost surely, 2^{203320021232101} is an apocalyptic number.

It is an amenable number.

203320021232101 is a deficient number, since it is larger than the sum of its proper divisors (1941237051).

203320021232101 is a wasteful number, since it uses less digits than its factorization.

203320021232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941237050.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203320021232101 its reverse (101232120023302), we get a palindrome (304552141255403).

The spelling of 203320021232101 in words is "two hundred three trillion, three hundred twenty billion, twenty-one million, two hundred thirty-two thousand, one hundred one".