1100009848921 has 2 divisors, whose sum is σ = 1100009848922. Its totient is φ = 1100009848920.

The previous prime is 1100009848867. The next prime is 1100009848969. The reversal of 1100009848921 is 1298489000011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1074257623296 + 25752225625 = 1036464^2 + 160475^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100009848921 - 2⁹ = 1100009848409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100009828921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550004924460 + 550004924461.

It is an arithmetic number, because the mean of its divisors is an integer number (550004924461).

Almost surely, 2^{1100009848921} is an apocalyptic number.

It is an amenable number.

1100009848921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100009848921 is an equidigital number, since it uses as much as digits as its factorization.

1100009848921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 1100009848921 in words is "one trillion, one hundred billion, nine million, eight hundred forty-eight thousand, nine hundred twenty-one".