13111203302231 has 4 divisors (see below), whose sum is σ = 13111806498432. Its totient is φ = 13110600106032.

The previous prime is 13111203302149. The next prime is 13111203302237. The reversal of 13111203302231 is 13220330211131.

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 13111203302231 - 2¹⁴ = 13111203285847 is a prime.

It is a super-2 number, since 2×13111203302231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13111203302197 and 13111203302206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111203302237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301565495 + ... + 301608968.

It is an arithmetic number, because the mean of its divisors is an integer number (3277951624608).

Almost surely, 2^{13111203302231} is an apocalyptic number.

13111203302231 is a deficient number, since it is larger than the sum of its proper divisors (603196201).

13111203302231 is an equidigital number, since it uses as much as digits as its factorization.

13111203302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603196200.

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

Adding to 13111203302231 its reverse (13220330211131), we get a palindrome (26331533513362).

The spelling of 13111203302231 in words is "thirteen trillion, one hundred eleven billion, two hundred three million, three hundred two thousand, two hundred thirty-one".