11503822042147 has 4 divisors (see below), whose sum is σ = 11503840786056. Its totient is φ = 11503803298240.

The previous prime is 11503822042091. The next prime is 11503822042253. The reversal of 11503822042147 is 74124022830511.

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

It is a cyclic number.

It is not a de Polignac number, because 11503822042147 - 2³¹ = 11501674558499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11503822742147) 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 in 3 ways as a sum of consecutive naturals, for example, 8419054 + ... + 9689587.

It is an arithmetic number, because the mean of its divisors is an integer number (2875960196514).

Almost surely, 2^{11503822042147} is an apocalyptic number.

11503822042147 is a deficient number, since it is larger than the sum of its proper divisors (18743909).

11503822042147 is an equidigital number, since it uses as much as digits as its factorization.

11503822042147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18743908.

The product of its (nonzero) digits is 107520, while the sum is 40.

Adding to 11503822042147 its reverse (74124022830511), we get a palindrome (85627844872658).

The spelling of 11503822042147 in words is "eleven trillion, five hundred three billion, eight hundred twenty-two million, forty-two thousand, one hundred forty-seven".