11331155434 has 4 divisors (see below), whose sum is σ = 16996733154. Its totient is φ = 5665577716.

The previous prime is 11331155431. The next prime is 11331155491. The reversal of 11331155434 is 43455113311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43455113311 = 7019 ⋅6191069.

It can be written as a sum of positive squares in only one way, i.e., 10458130225 + 873025209 = 102265^2 + 29547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11331155396 and 11331155405.

It is not an unprimeable number, because it can be changed into a prime (11331155431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832788857 + ... + 2832788860.

Almost surely, 2^11331155434 is an apocalyptic number.

11331155434 is a deficient number, since it is larger than the sum of its proper divisors (5665577720).

11331155434 is an equidigital number, since it uses as much as digits as its factorization.

11331155434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665577719.

The product of its digits is 10800, while the sum is 31.

Adding to 11331155434 its reverse (43455113311), we get a palindrome (54786268745).

The spelling of 11331155434 in words is "eleven billion, three hundred thirty-one million, one hundred fifty-five thousand, four hundred thirty-four".