11431342233 has 36 divisors (see below), whose sum is σ = 16965089388. Its totient is φ = 7415331840.

The previous prime is 11431342211. The next prime is 11431342243. The reversal of 11431342233 is 33224313411.

It is a happy number.

11431342233 is a `hidden beast` number, since 1 + 1 + 431 + 3 + 4 + 223 + 3 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 97344 + 11431244889 = 312^2 + 106917^2 .

It is not a de Polignac number, because 11431342233 - 2⁹ = 11431341721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11431342197 and 11431342206.

It is not an unprimeable number, because it can be changed into a prime (11431342243) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5164435 + ... + 5166647.

It is an arithmetic number, because the mean of its divisors is an integer number (471252483).

Almost surely, 2^11431342233 is an apocalyptic number.

It is an amenable number.

11431342233 is a deficient number, since it is larger than the sum of its proper divisors (5533747155).

11431342233 is an equidigital number, since it uses as much as digits as its factorization.

11431342233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474 (or 2374 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 11431342233 its reverse (33224313411), we get a palindrome (44655655644).

The spelling of 11431342233 in words is "eleven billion, four hundred thirty-one million, three hundred forty-two thousand, two hundred thirty-three".