13113031202321 has 8 divisors (see below), whose sum is σ = 13121148140520. Its totient is φ = 13104914902272.

The previous prime is 13113031202317. The next prime is 13113031202351. The reversal of 13113031202321 is 12320213031131.

It can be written as a sum of positive squares in 4 ways, for example, as 145398078721 + 12967633123600 = 381311^2 + 3601060^2 .

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 13113031202321 - 2² = 13113031202317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13113031202311) 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, 44858591 + ... + 45149963.

It is an arithmetic number, because the mean of its divisors is an integer number (1640143517565).

Almost surely, 2^{13113031202321} is an apocalyptic number.

It is an amenable number.

13113031202321 is a deficient number, since it is larger than the sum of its proper divisors (8116938199).

13113031202321 is a wasteful number, since it uses less digits than its factorization.

13113031202321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319075.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13113031202321 its reverse (12320213031131), we get a palindrome (25433244233452).

The spelling of 13113031202321 in words is "thirteen trillion, one hundred thirteen billion, thirty-one million, two hundred two thousand, three hundred twenty-one".