2011345113523 has 4 divisors (see below), whose sum is σ = 2021452375600. Its totient is φ = 2001237851448.

The previous prime is 2011345113521. The next prime is 2011345113529. The reversal of 2011345113523 is 3253115431102.

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 2011345113523 - 2¹ = 2011345113521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011345113521) 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, 5053630740 + ... + 5053631137.

It is an arithmetic number, because the mean of its divisors is an integer number (505363093900).

Almost surely, 2^{2011345113523} is an apocalyptic number.

2011345113523 is a deficient number, since it is larger than the sum of its proper divisors (10107262077).

2011345113523 is a wasteful number, since it uses less digits than its factorization.

2011345113523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10107262076.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 2011345113523 in words is "two trillion, eleven billion, three hundred forty-five million, one hundred thirteen thousand, five hundred twenty-three".