13113332231 has 2 divisors, whose sum is σ = 13113332232. Its totient is φ = 13113332230.

The previous prime is 13113332207. The next prime is 13113332237. The reversal of 13113332231 is 13223331131.

It is a strong prime.

It is an emirp because it is prime and its reverse (13223331131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13113332231 - 2¹⁴ = 13113315847 is a prime.

It is a super-2 number, since 2×13113332231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13113332197 and 13113332206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13113332237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556666115 + 6556666116.

It is an arithmetic number, because the mean of its divisors is an integer number (6556666116).

Almost surely, 2^13113332231 is an apocalyptic number.

13113332231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113332231 is an equidigital number, since it uses as much as digits as its factorization.

13113332231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 23.

Adding to 13113332231 its reverse (13223331131), we get a palindrome (26336663362).

The spelling of 13113332231 in words is "thirteen billion, one hundred thirteen million, three hundred thirty-two thousand, two hundred thirty-one".