13111204331 has 2 divisors, whose sum is σ = 13111204332. Its totient is φ = 13111204330.

The previous prime is 13111204319. The next prime is 13111204343. The reversal of 13111204331 is 13340211131.

It is a balanced prime because it is at equal distance from previous prime (13111204319) and next prime (13111204343).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111204331 is a prime.

It is a super-2 number, since 2×13111204331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13111204361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555602165 + 6555602166.

It is an arithmetic number, because the mean of its divisors is an integer number (6555602166).

Almost surely, 2^13111204331 is an apocalyptic number.

13111204331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111204331 is an equidigital number, since it uses as much as digits as its factorization.

13111204331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13111204331 its reverse (13340211131), we get a palindrome (26451415462).

The spelling of 13111204331 in words is "thirteen billion, one hundred eleven million, two hundred four thousand, three hundred thirty-one".