11115504223651 has 2 divisors, whose sum is σ = 11115504223652. Its totient is φ = 11115504223650.

The previous prime is 11115504223643. The next prime is 11115504223657. The reversal of 11115504223651 is 15632240551111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11115504223651 - 2³ = 11115504223643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11115504223651.

It is not a weakly prime, because it can be changed into another prime (11115504223657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557752111825 + 5557752111826.

It is an arithmetic number, because the mean of its divisors is an integer number (5557752111826).

Almost surely, 2^{11115504223651} is an apocalyptic number.

11115504223651 is a deficient number, since it is larger than the sum of its proper divisors (1).

11115504223651 is an equidigital number, since it uses as much as digits as its factorization.

11115504223651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 37.

Adding to 11115504223651 its reverse (15632240551111), we get a palindrome (26747744774762).

The spelling of 11115504223651 in words is "eleven trillion, one hundred fifteen billion, five hundred four million, two hundred twenty-three thousand, six hundred fifty-one".