13031213230321 has 16 divisors (see below), whose sum is σ = 15310261249920. Its totient is φ = 10934666766720.

The previous prime is 13031213230249. The next prime is 13031213230333. The reversal of 13031213230321 is 12303231213031.

It is a cyclic number.

It is not a de Polignac number, because 13031213230321 - 2²³ = 13031204841713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13031213230361) 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, 19236 + ... + 5105173.

It is an arithmetic number, because the mean of its divisors is an integer number (956891328120).

Almost surely, 2^{13031213230321} is an apocalyptic number.

13031213230321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13031213230321 is a deficient number, since it is larger than the sum of its proper divisors (2279048019599).

13031213230321 is a wasteful number, since it uses less digits than its factorization.

13031213230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142216.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13031213230321 its reverse (12303231213031), we get a palindrome (25334444443352).

The spelling of 13031213230321 in words is "thirteen trillion, thirty-one billion, two hundred thirteen million, two hundred thirty thousand, three hundred twenty-one".