2001101233223 has 16 divisors (see below), whose sum is σ = 2034603242496. Its totient is φ = 1967882017920.

The previous prime is 2001101233207. The next prime is 2001101233249. The reversal of 2001101233223 is 3223321011002.

It is a cyclic number.

It is not a de Polignac number, because 2001101233223 - 2⁴ = 2001101233207 is a prime.

It is a super-2 number, since 2×2001101233223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001101233195 and 2001101233204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001101233283) 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, 112242236 + ... + 112260062.

It is an arithmetic number, because the mean of its divisors is an integer number (127162702656).

Almost surely, 2^{2001101233223} is an apocalyptic number.

2001101233223 is a deficient number, since it is larger than the sum of its proper divisors (33502009273).

2001101233223 is a wasteful number, since it uses less digits than its factorization.

2001101233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25654.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2001101233223 its reverse (3223321011002), we get a palindrome (5224422244225).

The spelling of 2001101233223 in words is "two trillion, one billion, one hundred one million, two hundred thirty-three thousand, two hundred twenty-three".