10011111001101 has 12 divisors (see below), whose sum is σ = 16526278478112. Its totient is φ = 5720634857736.

The previous prime is 10011111001097. The next prime is 10011111001103. The reversal of 10011111001101 is 10110011111001.

It is not a de Polignac number, because 10011111001101 - 2² = 10011111001097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011111001103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79453261851 + ... + 79453261976.

It is an arithmetic number, because the mean of its divisors is an integer number (1377189873176).

Almost surely, 2^{10011111001101} is an apocalyptic number.

It is an amenable number.

10011111001101 is a deficient number, since it is larger than the sum of its proper divisors (6515167477011).

10011111001101 is a wasteful number, since it uses less digits than its factorization.

10011111001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158906523840 (or 158906523837 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 10011111001101 its reverse (10110011111001), we get a palindrome (20121122112102).

It can be divided in two parts, 10011111001 and 101, that multiplied together give a palindrome (1011122211101).

The spelling of 10011111001101 in words is "ten trillion, eleven billion, one hundred eleven million, one thousand, one hundred one".