11723115257 has 8 divisors (see below), whose sum is σ = 13415692032. Its totient is φ = 10035000000.

The previous prime is 11723115253. The next prime is 11723115263. The reversal of 11723115257 is 75251132711.

11723115257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11723115257 - 2² = 11723115253 is a prime.

It is a super-3 number, since 3×11723115257³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11723115251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109744 + ... + 1120257.

It is an arithmetic number, because the mean of its divisors is an integer number (1676961504).

Almost surely, 2^11723115257 is an apocalyptic number.

It is an amenable number.

11723115257 is a deficient number, since it is larger than the sum of its proper divisors (1692576775).

11723115257 is an equidigital number, since it uses as much as digits as its factorization.

11723115257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230759.

The product of its digits is 14700, while the sum is 35.

Adding to 11723115257 its reverse (75251132711), we get a palindrome (86974247968).

The spelling of 11723115257 in words is "eleven billion, seven hundred twenty-three million, one hundred fifteen thousand, two hundred fifty-seven".