11131031234 has 8 divisors (see below), whose sum is σ = 17147804988. Its totient is φ = 5415096240.

The previous prime is 11131031173. The next prime is 11131031239. The reversal of 11131031234 is 43213013111.

11131031234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11130883009 + 148225 = 105503^2 + 385^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11131031239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75209597 + ... + 75209744.

Almost surely, 2^11131031234 is an apocalyptic number.

11131031234 is a deficient number, since it is larger than the sum of its proper divisors (6016773754).

11131031234 is a wasteful number, since it uses less digits than its factorization.

11131031234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150419380.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11131031234 its reverse (43213013111), we get a palindrome (54344044345).

The spelling of 11131031234 in words is "eleven billion, one hundred thirty-one million, thirty-one thousand, two hundred thirty-four".