11423144135243 has 8 divisors (see below), whose sum is σ = 11436789263760. Its totient is φ = 11409507141120.

The previous prime is 11423144135233. The next prime is 11423144135267. The reversal of 11423144135243 is 34253144132411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11423144135243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11423144135197 and 11423144135206.

It is not an unprimeable number, because it can be changed into a prime (11423144135233) 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, 779003 + ... + 4842843.

It is an arithmetic number, because the mean of its divisors is an integer number (1429598657970).

Almost surely, 2^{11423144135243} is an apocalyptic number.

11423144135243 is a deficient number, since it is larger than the sum of its proper divisors (13645128517).

11423144135243 is a wasteful number, since it uses less digits than its factorization.

11423144135243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067197.

The product of its digits is 138240, while the sum is 38.

Adding to 11423144135243 its reverse (34253144132411), we get a palindrome (45676288267654).

The spelling of 11423144135243 in words is "eleven trillion, four hundred twenty-three billion, one hundred forty-four million, one hundred thirty-five thousand, two hundred forty-three".