11102120109947 has 2 divisors, whose sum is σ = 11102120109948. Its totient is φ = 11102120109946.

The previous prime is 11102120109917. The next prime is 11102120110001. The reversal of 11102120109947 is 74990102120111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11102120109947 - 2¹⁴ = 11102120093563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11102120109947.

It is not a weakly prime, because it can be changed into another prime (11102120109907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551060054973 + 5551060054974.

It is an arithmetic number, because the mean of its divisors is an integer number (5551060054974).

Almost surely, 2^{11102120109947} is an apocalyptic number.

11102120109947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102120109947 is an equidigital number, since it uses as much as digits as its factorization.

11102120109947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 38.

The spelling of 11102120109947 in words is "eleven trillion, one hundred two billion, one hundred twenty million, one hundred nine thousand, nine hundred forty-seven".