11111381148443 has 2 divisors, whose sum is σ = 11111381148444. Its totient is φ = 11111381148442.

The previous prime is 11111381148433. The next prime is 11111381148449. The reversal of 11111381148443 is 34484118311111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111381148443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111381148443.

It is not a weakly prime, because it can be changed into another prime (11111381148449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555690574221 + 5555690574222.

It is an arithmetic number, because the mean of its divisors is an integer number (5555690574222).

Almost surely, 2^{11111381148443} is an apocalyptic number.

11111381148443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111381148443 is an equidigital number, since it uses as much as digits as its factorization.

11111381148443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 41.

Adding to 11111381148443 its reverse (34484118311111), we get a palindrome (45595499459554).

The spelling of 11111381148443 in words is "eleven trillion, one hundred eleven billion, three hundred eighty-one million, one hundred forty-eight thousand, four hundred forty-three".