11311553 has 8 divisors (see below), whose sum is σ = 12372096. Its totient is φ = 10256400.

The previous prime is 11311541. The next prime is 11311567. The reversal of 11311553 is 35511311.

11311553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11311553 - 2⁸ = 11311297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11311513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3983 + ... + 6203.

It is an arithmetic number, because the mean of its divisors is an integer number (1546512).

Almost surely, 2^11311553 is an apocalyptic number.

It is an amenable number.

11311553 is a deficient number, since it is larger than the sum of its proper divisors (1060543).

11311553 is a wasteful number, since it uses less digits than its factorization.

11311553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695.

The product of its digits is 225, while the sum is 20.

The square root of 11311553 is about 3363.2652289107. The cubic root of 11311553 is about 224.4781519174.

Adding to 11311553 its reverse (35511311), we get a palindrome (46822864).

The spelling of 11311553 in words is "eleven million, three hundred eleven thousand, five hundred fifty-three".