11151215533201 has 2 divisors, whose sum is σ = 11151215533202. Its totient is φ = 11151215533200.

The previous prime is 11151215533121. The next prime is 11151215533247. The reversal of 11151215533201 is 10233551215111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10894851540225 + 256363992976 = 3300735^2 + 506324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11151215533201 is a prime.

It is not a weakly prime, because it can be changed into another prime (11151215533301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5575607766600 + 5575607766601.

It is an arithmetic number, because the mean of its divisors is an integer number (5575607766601).

Almost surely, 2^{11151215533201} is an apocalyptic number.

It is an amenable number.

11151215533201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11151215533201 is an equidigital number, since it uses as much as digits as its factorization.

11151215533201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 31.

Adding to 11151215533201 its reverse (10233551215111), we get a palindrome (21384766748312).

The spelling of 11151215533201 in words is "eleven trillion, one hundred fifty-one billion, two hundred fifteen million, five hundred thirty-three thousand, two hundred one".