201330202323 has 4 divisors (see below), whose sum is σ = 268440269768. Its totient is φ = 134220134880.

The previous prime is 201330202319. The next prime is 201330202351. The reversal of 201330202323 is 323202033102.

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

It is not a de Polignac number, because 201330202323 - 2² = 201330202319 is a prime.

It is a super-2 number, since 2×201330202323² (a number of 23 digits) contains 22 as substring.

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 201330202323.

It is not an unprimeable number, because it can be changed into a prime (201330202313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33555033718 + ... + 33555033723.

It is an arithmetic number, because the mean of its divisors is an integer number (67110067442).

Almost surely, 2^201330202323 is an apocalyptic number.

201330202323 is a deficient number, since it is larger than the sum of its proper divisors (67110067445).

201330202323 is an equidigital number, since it uses as much as digits as its factorization.

201330202323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67110067444.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 201330202323 its reverse (323202033102), we get a palindrome (524532235425).

The spelling of 201330202323 in words is "two hundred one billion, three hundred thirty million, two hundred two thousand, three hundred twenty-three".