11131450265231 has 2 divisors, whose sum is σ = 11131450265232. Its totient is φ = 11131450265230.

The previous prime is 11131450265083. The next prime is 11131450265239. The reversal of 11131450265231 is 13256205413111.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13256205413111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11131450265231 - 2¹⁸ = 11131450003087 is a prime.

It is a super-2 number, since 2×11131450265231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11131450265191 and 11131450265200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131450265239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565725132615 + 5565725132616.

It is an arithmetic number, because the mean of its divisors is an integer number (5565725132616).

Almost surely, 2^{11131450265231} is an apocalyptic number.

11131450265231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131450265231 is an equidigital number, since it uses as much as digits as its factorization.

11131450265231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 11131450265231 its reverse (13256205413111), we get a palindrome (24387655678342).

The spelling of 11131450265231 in words is "eleven trillion, one hundred thirty-one billion, four hundred fifty million, two hundred sixty-five thousand, two hundred thirty-one".