2002011011023 has 4 divisors (see below), whose sum is σ = 2089054968048. Its totient is φ = 1914967054000.

The previous prime is 2002011011017. The next prime is 2002011011027. The reversal of 2002011011023 is 3201101102002.

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

It is a cyclic number.

It is not a de Polignac number, because 2002011011023 - 2⁹ = 2002011010511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002011010994 and 2002011011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002011011027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43521978478 + ... + 43521978523.

It is an arithmetic number, because the mean of its divisors is an integer number (522263742012).

Almost surely, 2^{2002011011023} is an apocalyptic number.

2002011011023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2002011011023 is a deficient number, since it is larger than the sum of its proper divisors (87043957025).

2002011011023 is an equidigital number, since it uses as much as digits as its factorization.

2002011011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87043957024.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2002011011023 its reverse (3201101102002), we get a palindrome (5203112113025).

The spelling of 2002011011023 in words is "two trillion, two billion, eleven million, eleven thousand, twenty-three".