203123341221 has 8 divisors (see below), whose sum is σ = 278150881824. Its totient is φ = 131755680720.

The previous prime is 203123341177. The next prime is 203123341231. The reversal of 203123341221 is 122143321302.

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

It is not a de Polignac number, because 203123341221 - 2¹¹ = 203123339173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203123341191 and 203123341200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203123341231) 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, 914969895 + ... + 914970116.

It is an arithmetic number, because the mean of its divisors is an integer number (34768860228).

Almost surely, 2^203123341221 is an apocalyptic number.

It is an amenable number.

203123341221 is a deficient number, since it is larger than the sum of its proper divisors (75027540603).

203123341221 is a wasteful number, since it uses less digits than its factorization.

203123341221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829940051.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 203123341221 its reverse (122143321302), we get a palindrome (325266662523).

The spelling of 203123341221 in words is "two hundred three billion, one hundred twenty-three million, three hundred forty-one thousand, two hundred twenty-one".