11251252135 has 16 divisors (see below), whose sum is σ = 14284274400. Its totient is φ = 8483965056.

The previous prime is 11251252109. The next prime is 11251252141. The reversal of 11251252135 is 53125215211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11251252135 - 2⁷ = 11251252007 is a prime.

It is a super-3 number, since 3×11251252135³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281880 + ... + 319309.

It is an arithmetic number, because the mean of its divisors is an integer number (892767150).

Almost surely, 2^11251252135 is an apocalyptic number.

11251252135 is a deficient number, since it is larger than the sum of its proper divisors (3033022265).

11251252135 is a wasteful number, since it uses less digits than its factorization.

11251252135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601410.

The product of its digits is 3000, while the sum is 28.

Adding to 11251252135 its reverse (53125215211), we get a palindrome (64376467346).

The spelling of 11251252135 in words is "eleven billion, two hundred fifty-one million, two hundred fifty-two thousand, one hundred thirty-five".