201011101001 has 8 divisors (see below), whose sum is σ = 209777713920. Its totient is φ = 192246738112.

The previous prime is 201011100991. The next prime is 201011101009. The reversal of 201011101001 is 100101110102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201011101001 - 2³⁰ = 199937359177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201011101001.

It is not an unprimeable number, because it can be changed into a prime (201011101009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378656 + ... + 738513.

It is an arithmetic number, because the mean of its divisors is an integer number (26222214240).

Almost surely, 2^201011101001 is an apocalyptic number.

It is an amenable number.

201011101001 is a deficient number, since it is larger than the sum of its proper divisors (8766612919).

201011101001 is a wasteful number, since it uses less digits than its factorization.

201011101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125015.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 201011101001 its reverse (100101110102), we get a palindrome (301112211103).

The spelling of 201011101001 in words is "two hundred one billion, eleven million, one hundred one thousand, one".