11031220232 has 16 divisors (see below), whose sum is σ = 21188015100. Its totient is φ = 5381082880.

The previous prime is 11031220201. The next prime is 11031220259. The reversal of 11031220232 is 23202213011.

It can be written as a sum of positive squares in 2 ways, for example, as 9155810596 + 1875409636 = 95686^2 + 43306^2 .

It is a super-2 number, since 2×11031220232² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11031220232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16815557 + ... + 16816212.

Almost surely, 2^11031220232 is an apocalyptic number.

It is an amenable number.

11031220232 is a deficient number, since it is larger than the sum of its proper divisors (10156794868).

11031220232 is a wasteful number, since it uses less digits than its factorization.

11031220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33631816 (or 33631812 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11031220232 its reverse (23202213011), we get a palindrome (34233433243).

The spelling of 11031220232 in words is "eleven billion, thirty-one million, two hundred twenty thousand, two hundred thirty-two".