201023001101 has 8 divisors (see below), whose sum is σ = 216516030360. Its totient is φ = 185534217792.

The previous prime is 201023001073. The next prime is 201023001121. The reversal of 201023001101 is 101100320102.

It can be written as a sum of positive squares in 4 ways, for example, as 6452908900 + 194570092201 = 80330^2 + 441101^2 .

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 201023001101 - 2⁶ = 201023001037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201023001121) 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, 962810 + ... + 1152843.

It is an arithmetic number, because the mean of its divisors is an integer number (27064503795).

Almost surely, 2^201023001101 is an apocalyptic number.

It is an amenable number.

201023001101 is a deficient number, since it is larger than the sum of its proper divisors (15493029259).

201023001101 is a wasteful number, since it uses less digits than its factorization.

201023001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122975.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 201023001101 its reverse (101100320102), we get a palindrome (302123321203).

It can be divided in two parts, 20102 and 3001101, that added together give a palindrome (3021203).

The spelling of 201023001101 in words is "two hundred one billion, twenty-three million, one thousand, one hundred one".