11100200102001 has 6 divisors (see below), whose sum is σ = 16033622369570. Its totient is φ = 7400133401328.

The previous prime is 11100200101999. The next prime is 11100200102051. The reversal of 11100200102001 is 10020100200111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8288957693025 + 2811242408976 = 2879055^2 + 1676676^2 .

It is not a de Polignac number, because 11100200102001 - 2¹ = 11100200101999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1233355566889 = 11100200102001 / (1 + 1 + 1 + 0 + 0 + 2 + 0 + 0 + 1 + 0 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100200102051) 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, 616677783436 + ... + 616677783453.

Almost surely, 2^{11100200102001} is an apocalyptic number.

It is an amenable number.

11100200102001 is a deficient number, since it is larger than the sum of its proper divisors (4933422267569).

11100200102001 is a wasteful number, since it uses less digits than its factorization.

11100200102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233355566895 (or 1233355566892 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11100200102001 its reverse (10020100200111), we get a palindrome (21120300302112).

The spelling of 11100200102001 in words is "eleven trillion, one hundred billion, two hundred million, one hundred two thousand, one".