1003231111321 has 8 divisors (see below), whose sum is σ = 1019712613184. Its totient is φ = 986750741520.

The previous prime is 1003231111291. The next prime is 1003231111327. The reversal of 1003231111321 is 1231111323001.

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 1003231111321 - 2¹¹ = 1003231109273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003231111327) 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, 1606726 + ... + 2141968.

It is an arithmetic number, because the mean of its divisors is an integer number (127464076648).

Almost surely, 2^{1003231111321} is an apocalyptic number.

It is an amenable number.

1003231111321 is a deficient number, since it is larger than the sum of its proper divisors (16481501863).

1003231111321 is an equidigital number, since it uses as much as digits as its factorization.

1003231111321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566031.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1003231111321 its reverse (1231111323001), we get a palindrome (2234342434322).

The spelling of 1003231111321 in words is "one trillion, three billion, two hundred thirty-one million, one hundred eleven thousand, three hundred twenty-one".