203103213022021 has 8 divisors (see below), whose sum is σ = 218730822957920. Its totient is φ = 187476215351472.

The previous prime is 203103213022013. The next prime is 203103213022067. The reversal of 203103213022021 is 120220312301302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203103213022021 - 2³ = 203103213022013 is a prime.

It is a super-3 number, since 3×203103213022021³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203103213021983 and 203103213022001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203103213022001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152377251 + ... + 153704368.

It is an arithmetic number, because the mean of its divisors is an integer number (27341352869740).

Almost surely, 2^{203103213022021} is an apocalyptic number.

It is an amenable number.

203103213022021 is a deficient number, since it is larger than the sum of its proper divisors (15627609935899).

203103213022021 is a wasteful number, since it uses less digits than its factorization.

203103213022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306132675.

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

Adding to 203103213022021 its reverse (120220312301302), we get a palindrome (323323525323323).

The spelling of 203103213022021 in words is "two hundred three trillion, one hundred three billion, two hundred thirteen million, twenty-two thousand, twenty-one".