11201020001 has 32 divisors (see below), whose sum is σ = 12017591040. Its totient is φ = 10423074816.

The previous prime is 11201019997. The next prime is 11201020007. The reversal of 11201020001 is 10002010211.

It is a cyclic number.

It is not a de Polignac number, because 11201020001 - 2² = 11201019997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201020007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19412225 + ... + 19412801.

It is an arithmetic number, because the mean of its divisors is an integer number (375549720).

Almost surely, 2^11201020001 is an apocalyptic number.

It is an amenable number.

11201020001 is a deficient number, since it is larger than the sum of its proper divisors (816571039).

11201020001 is a wasteful number, since it uses less digits than its factorization.

11201020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11201020001 its reverse (10002010211), we get a palindrome (21203030212).

The spelling of 11201020001 in words is "eleven billion, two hundred one million, twenty thousand, one".