11251134013531 has 2 divisors, whose sum is σ = 11251134013532. Its totient is φ = 11251134013530.

The previous prime is 11251134013519. The next prime is 11251134013541. The reversal of 11251134013531 is 13531043115211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11251134013531 - 2²⁹ = 11250597142619 is a prime.

It is a super-2 number, since 2×11251134013531² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11251134013493 and 11251134013502.

It is not a weakly prime, because it can be changed into another prime (11251134013541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625567006765 + 5625567006766.

It is an arithmetic number, because the mean of its divisors is an integer number (5625567006766).

Almost surely, 2^{11251134013531} is an apocalyptic number.

11251134013531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11251134013531 is an equidigital number, since it uses as much as digits as its factorization.

11251134013531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 11251134013531 its reverse (13531043115211), we get a palindrome (24782177128742).

The spelling of 11251134013531 in words is "eleven trillion, two hundred fifty-one billion, one hundred thirty-four million, thirteen thousand, five hundred thirty-one".