11331431243 has 8 divisors (see below), whose sum is σ = 13088712240. Its totient is φ = 9695342080.

The previous prime is 11331431231. The next prime is 11331431257. The reversal of 11331431243 is 34213413311.

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

It is not a de Polignac number, because 11331431243 - 2⁶ = 11331431179 is a prime.

It is a super-3 number, since 3×11331431243³ (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 (11331431273) 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, 30297758 + ... + 30298131.

It is an arithmetic number, because the mean of its divisors is an integer number (1636089030).

Almost surely, 2^11331431243 is an apocalyptic number.

11331431243 is a deficient number, since it is larger than the sum of its proper divisors (1757280997).

11331431243 is a wasteful number, since it uses less digits than its factorization.

11331431243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60595917.

The product of its digits is 2592, while the sum is 26.

Adding to 11331431243 its reverse (34213413311), we get a palindrome (45544844554).

The spelling of 11331431243 in words is "eleven billion, three hundred thirty-one million, four hundred thirty-one thousand, two hundred forty-three".