11001011012109 has 6 divisors (see below), whose sum is σ = 15890349239726. Its totient is φ = 7334007341400.

The previous prime is 11001011012029. The next prime is 11001011012111. The reversal of 11001011012109 is 90121011010011.

It can be written as a sum of positive squares in only one way, i.e., 5737414184100 + 5263596828009 = 2395290^2 + 2294253^2 .

It is not a de Polignac number, because 11001011012109 - 2¹¹ = 11001011010061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001011012091 and 11001011012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001018012109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611167278442 + ... + 611167278459.

Almost surely, 2^{11001011012109} is an apocalyptic number.

It is an amenable number.

11001011012109 is a deficient number, since it is larger than the sum of its proper divisors (4889338227617).

11001011012109 is a wasteful number, since it uses less digits than its factorization.

11001011012109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222334556907 (or 1222334556904 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

The spelling of 11001011012109 in words is "eleven trillion, one billion, eleven million, twelve thousand, one hundred nine".