2011335021023 has 4 divisors (see below), whose sum is σ = 2011391933208. Its totient is φ = 2011278108840.

The previous prime is 2011335020999. The next prime is 2011335021037. The reversal of 2011335021023 is 3201205331102.

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 2011335021023 - 2³⁴ = 1994155151839 is a prime.

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 2011335021023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011335021823) 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, 28403048 + ... + 28473773.

It is an arithmetic number, because the mean of its divisors is an integer number (502847983302).

Almost surely, 2^{2011335021023} is an apocalyptic number.

2011335021023 is a deficient number, since it is larger than the sum of its proper divisors (56912185).

2011335021023 is an equidigital number, since it uses as much as digits as its factorization.

2011335021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56912184.

The product of its (nonzero) digits is 1080, while the sum is 23.

The spelling of 2011335021023 in words is "two trillion, eleven billion, three hundred thirty-five million, twenty-one thousand, twenty-three".