201323102101 has 16 divisors (see below), whose sum is σ = 224764309440. Its totient is φ = 178739608320.

The previous prime is 201323102059. The next prime is 201323102131. The reversal of 201323102101 is 101201323102.

It is a cyclic number.

It is not a de Polignac number, because 201323102101 - 2¹¹ = 201323100053 is a prime.

It is a super-2 number, since 2×201323102101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201323102131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3885501 + ... + 3936973.

It is an arithmetic number, because the mean of its divisors is an integer number (14047769340).

Almost surely, 2^201323102101 is an apocalyptic number.

It is an amenable number.

201323102101 is a deficient number, since it is larger than the sum of its proper divisors (23441207339).

201323102101 is a wasteful number, since it uses less digits than its factorization.

201323102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59796.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201323102101 its reverse (101201323102), we get a palindrome (302524425203).

It can be divided in two parts, 201323102 and 101, that multiplied together give a palindrome (20333633302).

The spelling of 201323102101 in words is "two hundred one billion, three hundred twenty-three million, one hundred two thousand, one hundred one".