11323431655 has 8 divisors (see below), whose sum is σ = 14387419152. Its totient is φ = 8525877888.

The previous prime is 11323431649. The next prime is 11323431661. The reversal of 11323431655 is 55613432311.

It is an interprime number because it is at equal distance from previous prime (11323431649) and next prime (11323431661).

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 11323431655 - 2⁷ = 11323431527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11323431655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66608337 + ... + 66608506.

It is an arithmetic number, because the mean of its divisors is an integer number (1798427394).

Almost surely, 2^11323431655 is an apocalyptic number.

11323431655 is a deficient number, since it is larger than the sum of its proper divisors (3063987497).

11323431655 is a wasteful number, since it uses less digits than its factorization.

11323431655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133216865.

The product of its digits is 32400, while the sum is 34.

Adding to 11323431655 its reverse (55613432311), we get a palindrome (66936863966).

The spelling of 11323431655 in words is "eleven billion, three hundred twenty-three million, four hundred thirty-one thousand, six hundred fifty-five".