5611011023 has 4 divisors (see below), whose sum is σ = 5854968048. Its totient is φ = 5367054000.

The previous prime is 5611011019. The next prime is 5611011053. The reversal of 5611011023 is 3201101165.

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 5611011023 - 2² = 5611011019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5611010986 and 5611011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611011053) 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, 121978478 + ... + 121978523.

It is an arithmetic number, because the mean of its divisors is an integer number (1463742012).

Almost surely, 2^5611011023 is an apocalyptic number.

5611011023 is a deficient number, since it is larger than the sum of its proper divisors (243957025).

5611011023 is a wasteful number, since it uses less digits than its factorization.

5611011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243957024.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 5611011023 is about 74906.6820984617. The cubic root of 5611011023 is about 1776.9711380720.

Adding to 5611011023 its reverse (3201101165), we get a palindrome (8812112188).

The spelling of 5611011023 in words is "five billion, six hundred eleven million, eleven thousand, twenty-three".