11312000243 has 4 divisors (see below), whose sum is σ = 11977412040. Its totient is φ = 10646588448.

The previous prime is 11312000213. The next prime is 11312000267. The reversal of 11312000243 is 34200021311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34200021311 = 71 ⋅481690441.

It is a cyclic number.

It is not a de Polignac number, because 11312000243 - 2⁶ = 11312000179 is a prime.

It is a super-2 number, since 2×11312000243² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 665411779 = 11312000243 / (1 + 1 + 3 + 1 + 2 + 0 + 0 + 0 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312000213) 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, 332705873 + ... + 332705906.

It is an arithmetic number, because the mean of its divisors is an integer number (2994353010).

Almost surely, 2^11312000243 is an apocalyptic number.

11312000243 is a deficient number, since it is larger than the sum of its proper divisors (665411797).

11312000243 is an equidigital number, since it uses as much as digits as its factorization.

11312000243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665411796.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11312000243 its reverse (34200021311), we get a palindrome (45512021554).

The spelling of 11312000243 in words is "eleven billion, three hundred twelve million, two hundred forty-three", and thus it is an aban number.