1303231203221 has 16 divisors (see below), whose sum is σ = 1515670704000. Its totient is φ = 1111491836928.

The previous prime is 1303231203217. The next prime is 1303231203227. The reversal of 1303231203221 is 1223021323031.

It is a cyclic number.

It is not a de Polignac number, because 1303231203221 - 2² = 1303231203217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303231203227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87704996 + ... + 87719853.

It is an arithmetic number, because the mean of its divisors is an integer number (94729419000).

Almost surely, 2^{1303231203221} is an apocalyptic number.

It is an amenable number.

1303231203221 is a deficient number, since it is larger than the sum of its proper divisors (212439500779).

1303231203221 is a wasteful number, since it uses less digits than its factorization.

1303231203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175424908.

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

Adding to 1303231203221 its reverse (1223021323031), we get a palindrome (2526252526252).

The spelling of 1303231203221 in words is "one trillion, three hundred three billion, two hundred thirty-one million, two hundred three thousand, two hundred twenty-one".