11230220331 has 24 divisors (see below), whose sum is σ = 17723556864. Its totient is φ = 6795635760.

The previous prime is 11230220317. The next prime is 11230220341. The reversal of 11230220331 is 13302203211.

11230220331 is a `hidden beast` number, since 1 + 12 + 302 + 20 + 331 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-11230220331 is a prime.

It is a super-2 number, since 2×11230220331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11230220311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23611 + ... + 151716.

It is an arithmetic number, because the mean of its divisors is an integer number (738481536).

Almost surely, 2^11230220331 is an apocalyptic number.

11230220331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11230220331 is a deficient number, since it is larger than the sum of its proper divisors (6493336533).

11230220331 is a wasteful number, since it uses less digits than its factorization.

11230220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175991 (or 175988 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11230220331 its reverse (13302203211), we get a palindrome (24532423542).

The spelling of 11230220331 in words is "eleven billion, two hundred thirty million, two hundred twenty thousand, three hundred thirty-one".