11131201323 has 48 divisors (see below), whose sum is σ = 18096239616. Its totient is φ = 6533939520.

The previous prime is 11131201313. The next prime is 11131201369. The reversal of 11131201323 is 32310213111.

11131201323 is a `hidden beast` number, since 11 + 131 + 201 + 323 = 666.

It is not a de Polignac number, because 11131201323 - 2²¹ = 11129104171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11131201296 and 11131201305.

It is not an unprimeable number, because it can be changed into a prime (11131201313) 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 in 47 ways as a sum of consecutive naturals, for example, 810036 + ... + 823662.

It is an arithmetic number, because the mean of its divisors is an integer number (377004992).

Almost surely, 2^11131201323 is an apocalyptic number.

11131201323 is a deficient number, since it is larger than the sum of its proper divisors (6965038293).

11131201323 is a wasteful number, since it uses less digits than its factorization.

11131201323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13904 (or 13901 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11131201323 its reverse (32310213111), we get a palindrome (43441414434).

The spelling of 11131201323 in words is "eleven billion, one hundred thirty-one million, two hundred one thousand, three hundred twenty-three".