11321031154 has 4 divisors (see below), whose sum is σ = 16981546734. Its totient is φ = 5660515576.

The previous prime is 11321031131. The next prime is 11321031157. The reversal of 11321031154 is 45113012311.

It is a happy number.

11321031154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11157063129 + 163968025 = 105627^2 + 12805^2 .

It is not an unprimeable number, because it can be changed into a prime (11321031157) 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 as a sum of consecutive naturals, namely, 2830257787 + ... + 2830257790.

Almost surely, 2^11321031154 is an apocalyptic number.

11321031154 is a deficient number, since it is larger than the sum of its proper divisors (5660515580).

11321031154 is an equidigital number, since it uses as much as digits as its factorization.

11321031154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5660515579.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 11321031154 its reverse (45113012311), we get a palindrome (56434043465).

The spelling of 11321031154 in words is "eleven billion, three hundred twenty-one million, thirty-one thousand, one hundred fifty-four".