201023310101 has 8 divisors (see below), whose sum is σ = 201520380600. Its totient is φ = 200526504640.

The previous prime is 201023310097. The next prime is 201023310119. The reversal of 201023310101 is 101013320102.

201023310101 = T₄₇₈ + T₄₇₉ + ... + T₁₀₆₄₄.

It can be written as a sum of positive squares in 4 ways, for example, as 12154842001 + 188868468100 = 110249^2 + 434590^2 .

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 201023310101 - 2² = 201023310097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201023310601) 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, 1497995 + ... + 1626663.

It is an arithmetic number, because the mean of its divisors is an integer number (25190047575).

Almost surely, 2^201023310101 is an apocalyptic number.

It is an amenable number.

201023310101 is a deficient number, since it is larger than the sum of its proper divisors (497070499).

201023310101 is a wasteful number, since it uses less digits than its factorization.

201023310101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132519.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 201023310101 its reverse (101013320102), we get a palindrome (302036630203).

The spelling of 201023310101 in words is "two hundred one billion, twenty-three million, three hundred ten thousand, one hundred one".