231021313303 has 16 divisors (see below), whose sum is σ = 252974072736. Its totient is φ = 209227847040.

The previous prime is 231021313207. The next prime is 231021313331. The reversal of 231021313303 is 303313120132.

It is a cyclic number.

It is not a de Polignac number, because 231021313303 - 2¹³ = 231021305111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231021313363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5883925 + ... + 5923057.

It is an arithmetic number, because the mean of its divisors is an integer number (15810879546).

Almost surely, 2^231021313303 is an apocalyptic number.

231021313303 is a deficient number, since it is larger than the sum of its proper divisors (21952759433).

231021313303 is a wasteful number, since it uses less digits than its factorization.

231021313303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41154.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231021313303 its reverse (303313120132), we get a palindrome (534334433435).

The spelling of 231021313303 in words is "two hundred thirty-one billion, twenty-one million, three hundred thirteen thousand, three hundred three".