11145352331 has 4 divisors (see below), whose sum is σ = 11145676272. Its totient is φ = 11145028392.

The previous prime is 11145352327. The next prime is 11145352357. The reversal of 11145352331 is 13325354111.

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

It is a cyclic number.

It is not a de Polignac number, because 11145352331 - 2² = 11145352327 is a prime.

It is a super-2 number, since 2×11145352331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11145352294 and 11145352303.

It is not an unprimeable number, because it can be changed into a prime (11145352321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103271 + ... + 181536.

It is an arithmetic number, because the mean of its divisors is an integer number (2786419068).

Almost surely, 2^11145352331 is an apocalyptic number.

11145352331 is a deficient number, since it is larger than the sum of its proper divisors (323941).

11145352331 is an equidigital number, since it uses as much as digits as its factorization.

11145352331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323940.

The product of its digits is 5400, while the sum is 29.

The spelling of 11145352331 in words is "eleven billion, one hundred forty-five million, three hundred fifty-two thousand, three hundred thirty-one".