11304431113511 has 2 divisors, whose sum is σ = 11304431113512. Its totient is φ = 11304431113510.

The previous prime is 11304431113483. The next prime is 11304431113523. The reversal of 11304431113511 is 11531113440311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11304431113511 - 2⁶ = 11304431113447 is a prime.

It is a super-3 number, since 3×11304431113511³ (a number of 40 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11304431113531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652215556755 + 5652215556756.

It is an arithmetic number, because the mean of its divisors is an integer number (5652215556756).

Almost surely, 2^{11304431113511} is an apocalyptic number.

11304431113511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11304431113511 is an equidigital number, since it uses as much as digits as its factorization.

11304431113511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

Adding to 11304431113511 its reverse (11531113440311), we get a palindrome (22835544553822).

The spelling of 11304431113511 in words is "eleven trillion, three hundred four billion, four hundred thirty-one million, one hundred thirteen thousand, five hundred eleven".