11551254134 has 64 divisors (see below), whose sum is σ = 20346992640. Its totient is φ = 4816765440.

The previous prime is 11551254133. The next prime is 11551254173. The reversal of 11551254134 is 43145215511.

It is a self number, because there is not a number n which added to its sum of digits gives 11551254134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551254133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42624419 + ... + 42624689.

It is an arithmetic number, because the mean of its divisors is an integer number (317921760).

Almost surely, 2^11551254134 is an apocalyptic number.

11551254134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11551254134 is a deficient number, since it is larger than the sum of its proper divisors (8795738506).

11551254134 is a wasteful number, since it uses less digits than its factorization.

11551254134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its digits is 12000, while the sum is 32.

Adding to 11551254134 its reverse (43145215511), we get a palindrome (54696469645).

The spelling of 11551254134 in words is "eleven billion, five hundred fifty-one million, two hundred fifty-four thousand, one hundred thirty-four".