11531516223 has 8 divisors (see below), whose sum is σ = 15702490368. Its totient is φ = 7524109784.

The previous prime is 11531516209. The next prime is 11531516251. The reversal of 11531516223 is 32261513511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11531516223 - 2⁶ = 11531516159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531516023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40891761 + ... + 40892042.

It is an arithmetic number, because the mean of its divisors is an integer number (1962811296).

Almost surely, 2^11531516223 is an apocalyptic number.

11531516223 is a deficient number, since it is larger than the sum of its proper divisors (4170974145).

11531516223 is an equidigital number, since it uses as much as digits as its factorization.

11531516223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81783853.

The product of its digits is 5400, while the sum is 30.

The spelling of 11531516223 in words is "eleven billion, five hundred thirty-one million, five hundred sixteen thousand, two hundred twenty-three".