11142115451 has 4 divisors (see below), whose sum is σ = 11728542600. Its totient is φ = 10555688304.

The previous prime is 11142115399. The next prime is 11142115463. The reversal of 11142115451 is 15451124111.

11142115451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11142115451 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 11142115451.

It is not an unprimeable number, because it can be changed into a prime (11142115471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293213546 + ... + 293213583.

It is an arithmetic number, because the mean of its divisors is an integer number (2932135650).

Almost surely, 2^11142115451 is an apocalyptic number.

11142115451 is a deficient number, since it is larger than the sum of its proper divisors (586427149).

11142115451 is an equidigital number, since it uses as much as digits as its factorization.

11142115451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586427148.

The product of its digits is 800, while the sum is 26.

Adding to 11142115451 its reverse (15451124111), we get a palindrome (26593239562).

The spelling of 11142115451 in words is "eleven billion, one hundred forty-two million, one hundred fifteen thousand, four hundred fifty-one".