11356565023 has 4 divisors (see below), whose sum is σ = 11406157240. Its totient is φ = 11306972808.

The previous prime is 11356564997. The next prime is 11356565053. The reversal of 11356565023 is 32056565311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32056565311 = 601 ⋅53338711.

It is a cyclic number.

It is not a de Polignac number, because 11356565023 - 2¹⁷ = 11356433951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11356565053) 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, 24795765 + ... + 24796222.

It is an arithmetic number, because the mean of its divisors is an integer number (2851539310).

Almost surely, 2^11356565023 is an apocalyptic number.

11356565023 is a deficient number, since it is larger than the sum of its proper divisors (49592217).

11356565023 is an equidigital number, since it uses as much as digits as its factorization.

11356565023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49592216.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 11356565023 in words is "eleven billion, three hundred fifty-six million, five hundred sixty-five thousand, twenty-three".