1321203130231 has 8 divisors (see below), whose sum is σ = 1353463372800. Its totient is φ = 1288944591360.

The previous prime is 1321203130229. The next prime is 1321203130237. The reversal of 1321203130231 is 1320313021231.

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

It is not a de Polignac number, because 1321203130231 - 2¹ = 1321203130229 is a prime.

It is a super-2 number, since 2×1321203130231² (a number of 25 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 (1321203130237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220775 + ... + 2032903.

It is an arithmetic number, because the mean of its divisors is an integer number (169182921600).

Almost surely, 2^{1321203130231} is an apocalyptic number.

1321203130231 is a deficient number, since it is larger than the sum of its proper divisors (32260242569).

1321203130231 is an equidigital number, since it uses as much as digits as its factorization.

1321203130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851849.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1321203130231 its reverse (1320313021231), we get a palindrome (2641516151462).

The spelling of 1321203130231 in words is "one trillion, three hundred twenty-one billion, two hundred three million, one hundred thirty thousand, two hundred thirty-one".