13011020003231 has 4 divisors (see below), whose sum is σ = 13017438860712. Its totient is φ = 13004601145752.

The previous prime is 13011020003197. The next prime is 13011020003239. The reversal of 13011020003231 is 13230002011031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13011020003231 - 2¹⁰ = 13011020002207 is a prime.

It is a super-2 number, since 2×13011020003231² (a number of 27 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 (13011020003239) 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 3 ways as a sum of consecutive naturals, for example, 3209425700 + ... + 3209429753.

It is an arithmetic number, because the mean of its divisors is an integer number (3254359715178).

Almost surely, 2^{13011020003231} is an apocalyptic number.

13011020003231 is a deficient number, since it is larger than the sum of its proper divisors (6418857481).

13011020003231 is an equidigital number, since it uses as much as digits as its factorization.

13011020003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418857480.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13011020003231 its reverse (13230002011031), we get a palindrome (26241022014262).

The spelling of 13011020003231 in words is "thirteen trillion, eleven billion, twenty million, three thousand, two hundred thirty-one".