11115220351073 has 2 divisors, whose sum is σ = 11115220351074. Its totient is φ = 11115220351072.

The previous prime is 11115220350953. The next prime is 11115220351129. The reversal of 11115220351073 is 37015302251111.

It is a happy number.

11115220351073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11110702225984 + 4518125089 = 3333272^2 + 67217^2 .

It is a cyclic number.

It is not a de Polignac number, because 11115220351073 - 2²⁶ = 11115153242209 is a prime.

It is not a weakly prime, because it can be changed into another prime (11115220353073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557610175536 + 5557610175537.

It is an arithmetic number, because the mean of its divisors is an integer number (5557610175537).

Almost surely, 2^{11115220351073} is an apocalyptic number.

It is an amenable number.

11115220351073 is a deficient number, since it is larger than the sum of its proper divisors (1).

11115220351073 is an equidigital number, since it uses as much as digits as its factorization.

11115220351073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 11115220351073 in words is "eleven trillion, one hundred fifteen billion, two hundred twenty million, three hundred fifty-one thousand, seventy-three".