201201001101011 has 4 divisors (see below), whose sum is σ = 204204001117512. Its totient is φ = 198198001084512.

The previous prime is 201201001100993. The next prime is 201201001101017. The reversal of 201201001101011 is 110101100102102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201201001101011 - 2¹⁸ = 201201000838867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201201001100983 and 201201001101001.

It is not an unprimeable number, because it can be changed into a prime (201201001101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501500008150 + ... + 1501500008283.

It is an arithmetic number, because the mean of its divisors is an integer number (51051000279378).

Almost surely, 2^{201201001101011} is an apocalyptic number.

201201001101011 is a deficient number, since it is larger than the sum of its proper divisors (3003000016501).

201201001101011 is an equidigital number, since it uses as much as digits as its factorization.

201201001101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003000016500.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201201001101011 its reverse (110101100102102), we get a palindrome (311302101203113).

The spelling of 201201001101011 in words is "two hundred one trillion, two hundred one billion, one million, one hundred one thousand, eleven".