201001323320023 has 32 divisors (see below), whose sum is σ = 217571974373376. Its totient is φ = 184983174824448.

The previous prime is 201001323319999. The next prime is 201001323320029. The reversal of 201001323320023 is 320023323100102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201001323320023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201001323319976 and 201001323320003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001323320029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344702490 + ... + 345285112.

It is an arithmetic number, because the mean of its divisors is an integer number (6799124199168).

Almost surely, 2^{201001323320023} is an apocalyptic number.

201001323320023 is a deficient number, since it is larger than the sum of its proper divisors (16570651053353).

201001323320023 is a wasteful number, since it uses less digits than its factorization.

201001323320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583983.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 201001323320023 its reverse (320023323100102), we get a palindrome (521024646420125).

The spelling of 201001323320023 in words is "two hundred one trillion, one billion, three hundred twenty-three million, three hundred twenty thousand, twenty-three".