203031221023 has 8 divisors (see below), whose sum is σ = 210933730800. Its totient is φ = 195188806848.

The previous prime is 203031220999. The next prime is 203031221089. The reversal of 203031221023 is 320122130302.

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

It is not a de Polignac number, because 203031221023 - 2⁵ = 203031220991 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 (203031221423) 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, 15017013 + ... + 15030526.

It is an arithmetic number, because the mean of its divisors is an integer number (26366716350).

Almost surely, 2^203031221023 is an apocalyptic number.

203031221023 is a deficient number, since it is larger than the sum of its proper divisors (7902509777).

203031221023 is a wasteful number, since it uses less digits than its factorization.

203031221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30047801.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203031221023 its reverse (320122130302), we get a palindrome (523153351325).

The spelling of 203031221023 in words is "two hundred three billion, thirty-one million, two hundred twenty-one thousand, twenty-three".