11111001712403 has 2 divisors, whose sum is σ = 11111001712404. Its totient is φ = 11111001712402.

The previous prime is 11111001712381. The next prime is 11111001712469. The reversal of 11111001712403 is 30421710011111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111001712403 - 2³² = 11106706745107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11111001712483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500856201 + 5555500856202.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500856202).

Almost surely, 2^{11111001712403} is an apocalyptic number.

11111001712403 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111001712403 is an equidigital number, since it uses as much as digits as its factorization.

11111001712403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 23.

Adding to 11111001712403 its reverse (30421710011111), we get a palindrome (41532711723514).

The spelling of 11111001712403 in words is "eleven trillion, one hundred eleven billion, one million, seven hundred twelve thousand, four hundred three".