11501125451 has 8 divisors (see below), whose sum is σ = 11727232704. Its totient is φ = 11275355520.

The previous prime is 11501125409. The next prime is 11501125453. The reversal of 11501125451 is 15452110511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11501125451 - 2⁶ = 11501125387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11501125451.

It is not an unprimeable number, because it can be changed into a prime (11501125453) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14915 + ... + 152396.

It is an arithmetic number, because the mean of its divisors is an integer number (1465904088).

Almost surely, 2^11501125451 is an apocalyptic number.

11501125451 is a deficient number, since it is larger than the sum of its proper divisors (226107253).

11501125451 is a wasteful number, since it uses less digits than its factorization.

11501125451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168661.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 11501125451 its reverse (15452110511), we get a palindrome (26953235962).

The spelling of 11501125451 in words is "eleven billion, five hundred one million, one hundred twenty-five thousand, four hundred fifty-one".